Finding the Fourth Proportional to 98,461.98, 136,061.46 and 80,550.45

Step by Step Solution

1. Step 1: Write the proportion equation
   98,461.98 : 136,061.46 = 80,550.45 : x
2. Step 2: Convert to fraction form
   98,461.98/136,061.46 = 80,550.45/x
3. Step 3: Cross multiply
   98,461.98x = 136,061.46 × 80,550.45
4. Step 4: Simplify right side
   98,461.98x = 10,959,811,830.66
5. Step 5: Solve for x
   x = 10,959,811,830.66/98,461.98
6. Step 6: Final answer
   x = 111,310.09