Finding the Fourth Proportional to 142,108.83, 196,106.47 and 78,445.26

Step by Step Solution

1. Step 1: Write the proportion equation
   142,108.83 : 196,106.47 = 78,445.26 : x
2. Step 2: Convert to fraction form
   142,108.83/196,106.47 = 78,445.26/x
3. Step 3: Cross multiply
   142,108.83x = 196,106.47 × 78,445.26
4. Step 4: Simplify right side
   142,108.83x = 15,383,622,830.72
5. Step 5: Solve for x
   x = 15,383,622,830.72/142,108.83
6. Step 6: Final answer
   x = 108,252.41