Finding the Fourth Proportional to 141,616.86, 195,431.82 and 81,188.82

Step by Step Solution

1. Step 1: Write the proportion equation
   141,616.86 : 195,431.82 = 81,188.82 : x
2. Step 2: Convert to fraction form
   141,616.86/195,431.82 = 81,188.82/x
3. Step 3: Cross multiply
   141,616.86x = 195,431.82 × 81,188.82
4. Step 4: Simplify right side
   141,616.86x = 15,866,878,856.25
5. Step 5: Solve for x
   x = 15,866,878,856.25/141,616.86
6. Step 6: Final answer
   x = 112,040.89