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Finding the Fourth Proportional to 72,607.54, 108,911.82 and 20,019.88

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Solution

The fourth proportional to 72,607.54, 108,911.82 and 20,019.88 is: 30,029.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,607.54 : 108,911.82 = 20,019.88 : x
  2. Step 2: Convert to fraction form
    72,607.54/108,911.82 = 20,019.88/x
  3. Step 3: Cross multiply
    72,607.54x = 108,911.82 × 20,019.88
  4. Step 4: Simplify right side
    72,607.54x = 2,180,401,566.98
  5. Step 5: Solve for x
    x = 2,180,401,566.98/72,607.54
  6. Step 6: Final answer
    x = 30,029.96

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