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Finding the Fourth Proportional to 209,085.79, 288,537.63 and 113,591.65

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Solution

The fourth proportional to 209,085.79, 288,537.63 and 113,591.65 is: 156,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,085.79 : 288,537.63 = 113,591.65 : x
  2. Step 2: Convert to fraction form
    209,085.79/288,537.63 = 113,591.65/x
  3. Step 3: Cross multiply
    209,085.79x = 288,537.63 × 113,591.65
  4. Step 4: Simplify right side
    209,085.79x = 32,775,465,478.79
  5. Step 5: Solve for x
    x = 32,775,465,478.79/209,085.79
  6. Step 6: Final answer
    x = 156,756.06

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