Finding the Fourth Proportional to 142,610.85, 196,805.33 and 78,079.02

Step by Step Solution

1. Step 1: Write the proportion equation
   142,610.85 : 196,805.33 = 78,079.02 : x
2. Step 2: Convert to fraction form
   142,610.85/196,805.33 = 78,079.02/x
3. Step 3: Cross multiply
   142,610.85x = 196,805.33 × 78,079.02
4. Step 4: Simplify right side
   142,610.85x = 15,366,366,906.78
5. Step 5: Solve for x
   x = 15,366,366,906.78/142,610.85
6. Step 6: Final answer
   x = 107,750.34