Finding the Fourth Proportional to 9,116.15, 12,574.04 and 5,581.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.15 : 12,574.04 = 5,581.10 : x
2. Step 2: Convert to fraction form
   9,116.15/12,574.04 = 5,581.10/x
3. Step 3: Cross multiply
   9,116.15x = 12,574.04 × 5,581.10
4. Step 4: Simplify right side
   9,116.15x = 70,176,978.17
5. Step 5: Solve for x
   x = 70,176,978.17/9,116.15
6. Step 6: Final answer
   x = 7,698.10