Finding the Fourth Proportional to 144,801.28, 199,825.50 and 88,212.66

Step by Step Solution

1. Step 1: Write the proportion equation
   144,801.28 : 199,825.50 = 88,212.66 : x
2. Step 2: Convert to fraction form
   144,801.28/199,825.50 = 88,212.66/x
3. Step 3: Cross multiply
   144,801.28x = 199,825.50 × 88,212.66
4. Step 4: Simplify right side
   144,801.28x = 17,627,138,890.83
5. Step 5: Solve for x
   x = 17,627,138,890.83/144,801.28
6. Step 6: Final answer
   x = 121,733.31