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Finding the Fourth Proportional to 52,140.68, 71,953.20 and 29,479.28

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Solution

The fourth proportional to 52,140.68, 71,953.20 and 29,479.28 is: 40,680.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,140.68 : 71,953.20 = 29,479.28 : x
  2. Step 2: Convert to fraction form
    52,140.68/71,953.20 = 29,479.28/x
  3. Step 3: Cross multiply
    52,140.68x = 71,953.20 × 29,479.28
  4. Step 4: Simplify right side
    52,140.68x = 2,121,128,529.70
  5. Step 5: Solve for x
    x = 2,121,128,529.70/52,140.68
  6. Step 6: Final answer
    x = 40,680.88

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