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Finding the Fourth Proportional to 72,887.76, 109,334.52 and 20,301.84

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Solution

The fourth proportional to 72,887.76, 109,334.52 and 20,301.84 is: 30,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,887.76 : 109,334.52 = 20,301.84 : x
  2. Step 2: Convert to fraction form
    72,887.76/109,334.52 = 20,301.84/x
  3. Step 3: Cross multiply
    72,887.76x = 109,334.52 × 20,301.84
  4. Step 4: Simplify right side
    72,887.76x = 2,219,691,931.52
  5. Step 5: Solve for x
    x = 2,219,691,931.52/72,887.76
  6. Step 6: Final answer
    x = 30,453.56

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