Finding the Fourth Proportional to 131,781.59, 181,855.25 and 73,638.82

Step by Step Solution

1. Step 1: Write the proportion equation
   131,781.59 : 181,855.25 = 73,638.82 : x
2. Step 2: Convert to fraction form
   131,781.59/181,855.25 = 73,638.82/x
3. Step 3: Cross multiply
   131,781.59x = 181,855.25 × 73,638.82
4. Step 4: Simplify right side
   131,781.59x = 13,391,605,652.61
5. Step 5: Solve for x
   x = 13,391,605,652.61/131,781.59
6. Step 6: Final answer
   x = 101,619.70