Finding the Fourth Proportional to 9,298.02, 12,830.38 and 5,520.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,298.02 : 12,830.38 = 5,520.54 : x
2. Step 2: Convert to fraction form
   9,298.02/12,830.38 = 5,520.54/x
3. Step 3: Cross multiply
   9,298.02x = 12,830.38 × 5,520.54
4. Step 4: Simplify right side
   9,298.02x = 70,830,612.20
5. Step 5: Solve for x
   x = 70,830,612.20/9,298.02
6. Step 6: Final answer
   x = 7,617.82