Finding the Fourth Proportional to 199,142.90, 274,815.69 and 108,498.59

Step by Step Solution

1. Step 1: Write the proportion equation
   199,142.90 : 274,815.69 = 108,498.59 : x
2. Step 2: Convert to fraction form
   199,142.90/274,815.69 = 108,498.59/x
3. Step 3: Cross multiply
   199,142.90x = 274,815.69 × 108,498.59
4. Step 4: Simplify right side
   199,142.90x = 29,817,114,124.49
5. Step 5: Solve for x
   x = 29,817,114,124.49/199,142.90
6. Step 6: Final answer
   x = 149,727.22