Finding the Fourth Proportional to 142,525.10, 196,676.42 and 78,859.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,525.10 : 196,676.42 = 78,859.10 : x
2. Step 2: Convert to fraction form
   142,525.10/196,676.42 = 78,859.10/x
3. Step 3: Cross multiply
   142,525.10x = 196,676.42 × 78,859.10
4. Step 4: Simplify right side
   142,525.10x = 15,509,725,472.42
5. Step 5: Solve for x
   x = 15,509,725,472.42/142,525.10
6. Step 6: Final answer
   x = 108,821.01