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Finding the Fourth Proportional to 7,817.86, 11,728.00 and 2,622.52

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Solution

The fourth proportional to 7,817.86, 11,728.00 and 2,622.52 is: 3,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.86 : 11,728.00 = 2,622.52 : x
  2. Step 2: Convert to fraction form
    7,817.86/11,728.00 = 2,622.52/x
  3. Step 3: Cross multiply
    7,817.86x = 11,728.00 × 2,622.52
  4. Step 4: Simplify right side
    7,817.86x = 30,756,866.53
  5. Step 5: Solve for x
    x = 30,756,866.53/7,817.86
  6. Step 6: Final answer
    x = 3,934.18

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