Finding the Fourth Proportional to 9,577.55, 13,218.60 and 5,597.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,577.55 : 13,218.60 = 5,597.89 : x
2. Step 2: Convert to fraction form
   9,577.55/13,218.60 = 5,597.89/x
3. Step 3: Cross multiply
   9,577.55x = 13,218.60 × 5,597.89
4. Step 4: Simplify right side
   9,577.55x = 73,996,268.75
5. Step 5: Solve for x
   x = 73,996,268.75/9,577.55
6. Step 6: Final answer
   x = 7,726.01