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Finding the Fourth Proportional to 15,707.71, 23,560.96 and 5,319.46

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Solution

The fourth proportional to 15,707.71, 23,560.96 and 5,319.46 is: 7,978.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.71 : 23,560.96 = 5,319.46 : x
  2. Step 2: Convert to fraction form
    15,707.71/23,560.96 = 5,319.46/x
  3. Step 3: Cross multiply
    15,707.71x = 23,560.96 × 5,319.46
  4. Step 4: Simplify right side
    15,707.71x = 125,331,584.28
  5. Step 5: Solve for x
    x = 125,331,584.28/15,707.71
  6. Step 6: Final answer
    x = 7,978.99

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