Finding the Fourth Proportional to 9,116.83, 12,574.98 and 5,581.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.83 : 12,574.98 = 5,581.79 : x
2. Step 2: Convert to fraction form
   9,116.83/12,574.98 = 5,581.79/x
3. Step 3: Cross multiply
   9,116.83x = 12,574.98 × 5,581.79
4. Step 4: Simplify right side
   9,116.83x = 70,190,918.55
5. Step 5: Solve for x
   x = 70,190,918.55/9,116.83
6. Step 6: Final answer
   x = 7,699.05