Finding the Fourth Proportional to 9,615.05, 13,268.71 and 5,581.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,615.05 : 13,268.71 = 5,581.56 : x
2. Step 2: Convert to fraction form
   9,615.05/13,268.71 = 5,581.56/x
3. Step 3: Cross multiply
   9,615.05x = 13,268.71 × 5,581.56
4. Step 4: Simplify right side
   9,615.05x = 74,060,083.09
5. Step 5: Solve for x
   x = 74,060,083.09/9,615.05
6. Step 6: Final answer
   x = 7,702.51