Finding the Fourth Proportional to 198,648.45, 274,146.53 and 112,614.30

Step by Step Solution

1. Step 1: Write the proportion equation
   198,648.45 : 274,146.53 = 112,614.30 : x
2. Step 2: Convert to fraction form
   198,648.45/274,146.53 = 112,614.30/x
3. Step 3: Cross multiply
   198,648.45x = 274,146.53 × 112,614.30
4. Step 4: Simplify right side
   198,648.45x = 30,872,819,010.31
5. Step 5: Solve for x
   x = 30,872,819,010.31/198,648.45
6. Step 6: Final answer
   x = 155,414.35