Finding the Fourth Proportional to 141,877.47, 195,792.23 and 78,217.55

Step by Step Solution

1. Step 1: Write the proportion equation
   141,877.47 : 195,792.23 = 78,217.55 : x
2. Step 2: Convert to fraction form
   141,877.47/195,792.23 = 78,217.55/x
3. Step 3: Cross multiply
   141,877.47x = 195,792.23 × 78,217.55
4. Step 4: Simplify right side
   141,877.47x = 15,314,387,169.59
5. Step 5: Solve for x
   x = 15,314,387,169.59/141,877.47
6. Step 6: Final answer
   x = 107,940.94