Finding the Fourth Proportional to 142,329.05, 196,414.86 and 77,798.37

Step by Step Solution

1. Step 1: Write the proportion equation
   142,329.05 : 196,414.86 = 77,798.37 : x
2. Step 2: Convert to fraction form
   142,329.05/196,414.86 = 77,798.37/x
3. Step 3: Cross multiply
   142,329.05x = 196,414.86 × 77,798.37
4. Step 4: Simplify right side
   142,329.05x = 15,280,755,562.79
5. Step 5: Solve for x
   x = 15,280,755,562.79/142,329.05
6. Step 6: Final answer
   x = 107,362.17