Finding the Fourth Proportional to 9,498.98, 13,108.65 and 5,522.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.98 : 13,108.65 = 5,522.60 : x
2. Step 2: Convert to fraction form
   9,498.98/13,108.65 = 5,522.60/x
3. Step 3: Cross multiply
   9,498.98x = 13,108.65 × 5,522.60
4. Step 4: Simplify right side
   9,498.98x = 72,393,830.49
5. Step 5: Solve for x
   x = 72,393,830.49/9,498.98
6. Step 6: Final answer
   x = 7,621.22