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Finding the Fourth Proportional to 72,637.72, 108,948.42 and 20,054.68

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Solution

The fourth proportional to 72,637.72, 108,948.42 and 20,054.68 is: 30,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,637.72 : 108,948.42 = 20,054.68 : x
  2. Step 2: Convert to fraction form
    72,637.72/108,948.42 = 20,054.68/x
  3. Step 3: Cross multiply
    72,637.72x = 108,948.42 × 20,054.68
  4. Step 4: Simplify right side
    72,637.72x = 2,184,925,699.61
  5. Step 5: Solve for x
    x = 2,184,925,699.61/72,637.72
  6. Step 6: Final answer
    x = 30,079.77

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