Finding the Fourth Proportional to 144,513.68, 199,429.10 and 80,852.72

Step by Step Solution

1. Step 1: Write the proportion equation
   144,513.68 : 199,429.10 = 80,852.72 : x
2. Step 2: Convert to fraction form
   144,513.68/199,429.10 = 80,852.72/x
3. Step 3: Cross multiply
   144,513.68x = 199,429.10 × 80,852.72
4. Step 4: Simplify right side
   144,513.68x = 16,124,385,182.15
5. Step 5: Solve for x
   x = 16,124,385,182.15/144,513.68
6. Step 6: Final answer
   x = 111,576.88