Finding the Fourth Proportional to 141,857.29, 195,763.01 and 78,196.15

Step by Step Solution

1. Step 1: Write the proportion equation
   141,857.29 : 195,763.01 = 78,196.15 : x
2. Step 2: Convert to fraction form
   141,857.29/195,763.01 = 78,196.15/x
3. Step 3: Cross multiply
   141,857.29x = 195,763.01 × 78,196.15
4. Step 4: Simplify right side
   141,857.29x = 15,307,913,694.41
5. Step 5: Solve for x
   x = 15,307,913,694.41/141,857.29
6. Step 6: Final answer
   x = 107,910.66