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Finding the Fourth Proportional to 60,990.10, 91,493.92 and 18,873.51

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Solution

The fourth proportional to 60,990.10, 91,493.92 and 18,873.51 is: 28,312.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,990.10 : 91,493.92 = 18,873.51 : x
  2. Step 2: Convert to fraction form
    60,990.10/91,493.92 = 18,873.51/x
  3. Step 3: Cross multiply
    60,990.10x = 91,493.92 × 18,873.51
  4. Step 4: Simplify right side
    60,990.10x = 1,726,811,094.55
  5. Step 5: Solve for x
    x = 1,726,811,094.55/60,990.10
  6. Step 6: Final answer
    x = 28,312.97

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