Finding the Fourth Proportional to 196,445.52, 271,105.92 and 115,920.72

Step by Step Solution

1. Step 1: Write the proportion equation
   196,445.52 : 271,105.92 = 115,920.72 : x
2. Step 2: Convert to fraction form
   196,445.52/271,105.92 = 115,920.72/x
3. Step 3: Cross multiply
   196,445.52x = 271,105.92 × 115,920.72
4. Step 4: Simplify right side
   196,445.52x = 31,426,793,442.66
5. Step 5: Solve for x
   x = 31,426,793,442.66/196,445.52
6. Step 6: Final answer
   x = 159,977.15