Finding the Fourth Proportional to 142,644.52, 196,852.52 and 78,116.48

Step by Step Solution

1. Step 1: Write the proportion equation
   142,644.52 : 196,852.52 = 78,116.48 : x
2. Step 2: Convert to fraction form
   142,644.52/196,852.52 = 78,116.48/x
3. Step 3: Cross multiply
   142,644.52x = 196,852.52 × 78,116.48
4. Step 4: Simplify right side
   142,644.52x = 15,377,425,941.53
5. Step 5: Solve for x
   x = 15,377,425,941.53/142,644.52
6. Step 6: Final answer
   x = 107,802.43