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Finding the Fourth Proportional to 58,314.40, 87,471.60 and 18,872.80

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Solution

The fourth proportional to 58,314.40, 87,471.60 and 18,872.80 is: 28,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,314.40 : 87,471.60 = 18,872.80 : x
  2. Step 2: Convert to fraction form
    58,314.40/87,471.60 = 18,872.80/x
  3. Step 3: Cross multiply
    58,314.40x = 87,471.60 × 18,872.80
  4. Step 4: Simplify right side
    58,314.40x = 1,650,834,012.48
  5. Step 5: Solve for x
    x = 1,650,834,012.48/58,314.40
  6. Step 6: Final answer
    x = 28,309.20

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