Finding the Fourth Proportional to 144,155.06, 198,804.93 and 90,445.94

Step by Step Solution

1. Step 1: Write the proportion equation
   144,155.06 : 198,804.93 = 90,445.94 : x
2. Step 2: Convert to fraction form
   144,155.06/198,804.93 = 90,445.94/x
3. Step 3: Cross multiply
   144,155.06x = 198,804.93 × 90,445.94
4. Step 4: Simplify right side
   144,155.06x = 17,981,098,770.48
5. Step 5: Solve for x
   x = 17,981,098,770.48/144,155.06
6. Step 6: Final answer
   x = 124,734.43