Finding the Fourth Proportional to 199,802.89, 275,728.20 and 109,160.37

Step by Step Solution

1. Step 1: Write the proportion equation
   199,802.89 : 275,728.20 = 109,160.37 : x
2. Step 2: Convert to fraction form
   199,802.89/275,728.20 = 109,160.37/x
3. Step 3: Cross multiply
   199,802.89x = 275,728.20 × 109,160.37
4. Step 4: Simplify right side
   199,802.89x = 30,098,592,006.02
5. Step 5: Solve for x
   x = 30,098,592,006.02/199,802.89
6. Step 6: Final answer
   x = 150,641.43