Finding the Fourth Proportional to 9,580.45, 13,216.88 and 5,490.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,580.45 : 13,216.88 = 5,490.08 : x
2. Step 2: Convert to fraction form
   9,580.45/13,216.88 = 5,490.08/x
3. Step 3: Cross multiply
   9,580.45x = 13,216.88 × 5,490.08
4. Step 4: Simplify right side
   9,580.45x = 72,561,733.47
5. Step 5: Solve for x
   x = 72,561,733.47/9,580.45
6. Step 6: Final answer
   x = 7,573.94