Finding the Fourth Proportional to 141,531.52, 195,315.16 and 81,100.96

Step by Step Solution

1. Step 1: Write the proportion equation
   141,531.52 : 195,315.16 = 81,100.96 : x
2. Step 2: Convert to fraction form
   141,531.52/195,315.16 = 81,100.96/x
3. Step 3: Cross multiply
   141,531.52x = 195,315.16 × 81,100.96
4. Step 4: Simplify right side
   141,531.52x = 15,840,246,978.55
5. Step 5: Solve for x
   x = 15,840,246,978.55/141,531.52
6. Step 6: Final answer
   x = 111,920.28