Finding the Fourth Proportional to 199,940.61, 275,917.42 and 109,296.61

Step by Step Solution

1. Step 1: Write the proportion equation
   199,940.61 : 275,917.42 = 109,296.61 : x
2. Step 2: Convert to fraction form
   199,940.61/275,917.42 = 109,296.61/x
3. Step 3: Cross multiply
   199,940.61x = 275,917.42 × 109,296.61
4. Step 4: Simplify right side
   199,940.61x = 30,156,838,092.77
5. Step 5: Solve for x
   x = 30,156,838,092.77/199,940.61
6. Step 6: Final answer
   x = 150,828.98