Finding the Fourth Proportional to 9,581.32, 13,218.42 and 5,857.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,581.32 : 13,218.42 = 5,857.48 : x
2. Step 2: Convert to fraction form
   9,581.32/13,218.42 = 5,857.48/x
3. Step 3: Cross multiply
   9,581.32x = 13,218.42 × 5,857.48
4. Step 4: Simplify right side
   9,581.32x = 77,426,630.78
5. Step 5: Solve for x
   x = 77,426,630.78/9,581.32
6. Step 6: Final answer
   x = 8,081.00