Finding the Fourth Proportional to 9,597.31, 13,247.60 and 5,619.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,597.31 : 13,247.60 = 5,619.70 : x
2. Step 2: Convert to fraction form
   9,597.31/13,247.60 = 5,619.70/x
3. Step 3: Cross multiply
   9,597.31x = 13,247.60 × 5,619.70
4. Step 4: Simplify right side
   9,597.31x = 74,447,443.38
5. Step 5: Solve for x
   x = 74,447,443.38/9,597.31
6. Step 6: Final answer
   x = 7,757.12