Finding the Fourth Proportional to 144,429.18, 199,317.70 and 80,766.82

Step by Step Solution

1. Step 1: Write the proportion equation
   144,429.18 : 199,317.70 = 80,766.82 : x
2. Step 2: Convert to fraction form
   144,429.18/199,317.70 = 80,766.82/x
3. Step 3: Cross multiply
   144,429.18x = 199,317.70 × 80,766.82
4. Step 4: Simplify right side
   144,429.18x = 16,098,256,798.71
5. Step 5: Solve for x
   x = 16,098,256,798.71/144,429.18
6. Step 6: Final answer
   x = 111,461.25