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Finding the Fourth Proportional to 72,647.54, 108,971.15 and 19,339.53

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Solution

The fourth proportional to 72,647.54, 108,971.15 and 19,339.53 is: 29,009.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,647.54 : 108,971.15 = 19,339.53 : x
  2. Step 2: Convert to fraction form
    72,647.54/108,971.15 = 19,339.53/x
  3. Step 3: Cross multiply
    72,647.54x = 108,971.15 × 19,339.53
  4. Step 4: Simplify right side
    72,647.54x = 2,107,450,824.56
  5. Step 5: Solve for x
    x = 2,107,450,824.56/72,647.54
  6. Step 6: Final answer
    x = 29,009.25

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