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Finding the Fourth Proportional to 58,286.60, 87,429.90 and 39,624.20

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Solution

The fourth proportional to 58,286.60, 87,429.90 and 39,624.20 is: 59,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,286.60 : 87,429.90 = 39,624.20 : x
  2. Step 2: Convert to fraction form
    58,286.60/87,429.90 = 39,624.20/x
  3. Step 3: Cross multiply
    58,286.60x = 87,429.90 × 39,624.20
  4. Step 4: Simplify right side
    58,286.60x = 3,464,339,843.58
  5. Step 5: Solve for x
    x = 3,464,339,843.58/58,286.60
  6. Step 6: Final answer
    x = 59,436.30

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