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Finding the Fourth Proportional to 58,300.60, 87,450.90 and 21,359.80

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Solution

The fourth proportional to 58,300.60, 87,450.90 and 21,359.80 is: 32,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,300.60 : 87,450.90 = 21,359.80 : x
  2. Step 2: Convert to fraction form
    58,300.60/87,450.90 = 21,359.80/x
  3. Step 3: Cross multiply
    58,300.60x = 87,450.90 × 21,359.80
  4. Step 4: Simplify right side
    58,300.60x = 1,867,933,733.82
  5. Step 5: Solve for x
    x = 1,867,933,733.82/58,300.60
  6. Step 6: Final answer
    x = 32,039.70

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