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Finding the Fourth Proportional to 13,707.78, 20,546.70 and 7,034.94

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Solution

The fourth proportional to 13,707.78, 20,546.70 and 7,034.94 is: 10,544.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.78 : 20,546.70 = 7,034.94 : x
  2. Step 2: Convert to fraction form
    13,707.78/20,546.70 = 7,034.94/x
  3. Step 3: Cross multiply
    13,707.78x = 20,546.70 × 7,034.94
  4. Step 4: Simplify right side
    13,707.78x = 144,544,801.70
  5. Step 5: Solve for x
    x = 144,544,801.70/13,707.78
  6. Step 6: Final answer
    x = 10,544.73

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