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Finding the Fourth Proportional to 58,255.20, 87,139.80 and 53,064.72

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Solution

The fourth proportional to 58,255.20, 87,139.80 and 53,064.72 is: 79,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,255.20 : 87,139.80 = 53,064.72 : x
  2. Step 2: Convert to fraction form
    58,255.20/87,139.80 = 53,064.72/x
  3. Step 3: Cross multiply
    58,255.20x = 87,139.80 × 53,064.72
  4. Step 4: Simplify right side
    58,255.20x = 4,624,049,087.86
  5. Step 5: Solve for x
    x = 4,624,049,087.86/58,255.20
  6. Step 6: Final answer
    x = 79,375.73

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