Finding the Fourth Proportional to 144,061.99, 198,825.60 and 80,403.88

Step by Step Solution

1. Step 1: Write the proportion equation
   144,061.99 : 198,825.60 = 80,403.88 : x
2. Step 2: Convert to fraction form
   144,061.99/198,825.60 = 80,403.88/x
3. Step 3: Cross multiply
   144,061.99x = 198,825.60 × 80,403.88
4. Step 4: Simplify right side
   144,061.99x = 15,986,349,683.33
5. Step 5: Solve for x
   x = 15,986,349,683.33/144,061.99
6. Step 6: Final answer
   x = 110,968.55