Finding the Fourth Proportional to 89,872.38, 123,908.72 and 73,681.02

Step by Step Solution

1. Step 1: Write the proportion equation
   89,872.38 : 123,908.72 = 73,681.02 : x
2. Step 2: Convert to fraction form
   89,872.38/123,908.72 = 73,681.02/x
3. Step 3: Cross multiply
   89,872.38x = 123,908.72 × 73,681.02
4. Step 4: Simplify right side
   89,872.38x = 9,129,720,508.09
5. Step 5: Solve for x
   x = 9,129,720,508.09/89,872.38
6. Step 6: Final answer
   x = 101,585.39