Finding the Fourth Proportional to 141,824.78, 195,727.22 and 78,168.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,824.78 : 195,727.22 = 78,168.50 : x
2. Step 2: Convert to fraction form
   141,824.78/195,727.22 = 78,168.50/x
3. Step 3: Cross multiply
   141,824.78x = 195,727.22 × 78,168.50
4. Step 4: Simplify right side
   141,824.78x = 15,299,703,196.57
5. Step 5: Solve for x
   x = 15,299,703,196.57/141,824.78
6. Step 6: Final answer
   x = 107,877.50