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Finding the Fourth Proportional to 71,334.60, 106,872.30 and 58,115.40

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Solution

The fourth proportional to 71,334.60, 106,872.30 and 58,115.40 is: 87,067.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,334.60 : 106,872.30 = 58,115.40 : x
  2. Step 2: Convert to fraction form
    71,334.60/106,872.30 = 58,115.40/x
  3. Step 3: Cross multiply
    71,334.60x = 106,872.30 × 58,115.40
  4. Step 4: Simplify right side
    71,334.60x = 6,210,926,463.42
  5. Step 5: Solve for x
    x = 6,210,926,463.42/71,334.60
  6. Step 6: Final answer
    x = 87,067.52

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