Finding the Fourth Proportional to 199,146.42, 274,820.50 and 108,502.10

Step by Step Solution

1. Step 1: Write the proportion equation
   199,146.42 : 274,820.50 = 108,502.10 : x
2. Step 2: Convert to fraction form
   199,146.42/274,820.50 = 108,502.10/x
3. Step 3: Cross multiply
   199,146.42x = 274,820.50 × 108,502.10
4. Step 4: Simplify right side
   199,146.42x = 29,818,601,373.05
5. Step 5: Solve for x
   x = 29,818,601,373.05/199,146.42
6. Step 6: Final answer
   x = 149,732.05