Finding the Fourth Proportional to 8,200.98, 12,307.37 and 5,561.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,200.98 : 12,307.37 = 5,561.91 : x
2. Step 2: Convert to fraction form
   8,200.98/12,307.37 = 5,561.91/x
3. Step 3: Cross multiply
   8,200.98x = 12,307.37 × 5,561.91
4. Step 4: Simplify right side
   8,200.98x = 68,452,456.47
5. Step 5: Solve for x
   x = 68,452,456.47/8,200.98
6. Step 6: Final answer
   x = 8,346.86