Finding the Fourth Proportional to 131,810.88, 181,901.52 and 72,194.88

Step by Step Solution

1. Step 1: Write the proportion equation
   131,810.88 : 181,901.52 = 72,194.88 : x
2. Step 2: Convert to fraction form
   131,810.88/181,901.52 = 72,194.88/x
3. Step 3: Cross multiply
   131,810.88x = 181,901.52 × 72,194.88
4. Step 4: Simplify right side
   131,810.88x = 13,132,358,408.22
5. Step 5: Solve for x
   x = 13,132,358,408.22/131,810.88
6. Step 6: Final answer
   x = 99,630.31