Finding the Fourth Proportional to 199,142.72, 274,814.43 and 108,502.46

Step by Step Solution

1. Step 1: Write the proportion equation
   199,142.72 : 274,814.43 = 108,502.46 : x
2. Step 2: Convert to fraction form
   199,142.72/274,814.43 = 108,502.46/x
3. Step 3: Cross multiply
   199,142.72x = 274,814.43 × 108,502.46
4. Step 4: Simplify right side
   199,142.72x = 29,818,041,698.50
5. Step 5: Solve for x
   x = 29,818,041,698.50/199,142.72
6. Step 6: Final answer
   x = 149,732.02