Finding the Fourth Proportional to 144,515.31, 199,438.88 and 80,849.31

Step by Step Solution

1. Step 1: Write the proportion equation
   144,515.31 : 199,438.88 = 80,849.31 : x
2. Step 2: Convert to fraction form
   144,515.31/199,438.88 = 80,849.31/x
3. Step 3: Cross multiply
   144,515.31x = 199,438.88 × 80,849.31
4. Step 4: Simplify right side
   144,515.31x = 16,124,495,430.93
5. Step 5: Solve for x
   x = 16,124,495,430.93/144,515.31
6. Step 6: Final answer
   x = 111,576.38