Finding the Fourth Proportional to 144,045.57, 198,784.40 and 80,382

Step by Step Solution

1. Step 1: Write the proportion equation
   144,045.57 : 198,784.40 = 80,382 : x
2. Step 2: Convert to fraction form
   144,045.57/198,784.40 = 80,382/x
3. Step 3: Cross multiply
   144,045.57x = 198,784.40 × 80,382
4. Step 4: Simplify right side
   144,045.57x = 15,978,687,238.89
5. Step 5: Solve for x
   x = 15,978,687,238.89/144,045.57
6. Step 6: Final answer
   x = 110,928.00