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Finding the Fourth Proportional to 24,581.88, 36,861.89 and 18,720.72

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Solution

The fourth proportional to 24,581.88, 36,861.89 and 18,720.72 is: 28,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,581.88 : 36,861.89 = 18,720.72 : x
  2. Step 2: Convert to fraction form
    24,581.88/36,861.89 = 18,720.72/x
  3. Step 3: Cross multiply
    24,581.88x = 36,861.89 × 18,720.72
  4. Step 4: Simplify right side
    24,581.88x = 690,081,027.76
  5. Step 5: Solve for x
    x = 690,081,027.76/24,581.88
  6. Step 6: Final answer
    x = 28,072.75

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