Finding the Fourth Proportional to 144,517.52, 199,434.18 and 80,870.28

Step by Step Solution

1. Step 1: Write the proportion equation
   144,517.52 : 199,434.18 = 80,870.28 : x
2. Step 2: Convert to fraction form
   144,517.52/199,434.18 = 80,870.28/x
3. Step 3: Cross multiply
   144,517.52x = 199,434.18 × 80,870.28
4. Step 4: Simplify right side
   144,517.52x = 16,128,297,978.17
5. Step 5: Solve for x
   x = 16,128,297,978.17/144,517.52
6. Step 6: Final answer
   x = 111,600.99