Finding the Fourth Proportional to 141,901.31, 195,823.57 and 78,239.29

Step by Step Solution

1. Step 1: Write the proportion equation
   141,901.31 : 195,823.57 = 78,239.29 : x
2. Step 2: Convert to fraction form
   141,901.31/195,823.57 = 78,239.29/x
3. Step 3: Cross multiply
   141,901.31x = 195,823.57 × 78,239.29
4. Step 4: Simplify right side
   141,901.31x = 15,321,097,082.07
5. Step 5: Solve for x
   x = 15,321,097,082.07/141,901.31
6. Step 6: Final answer
   x = 107,970.09