Finding the Fourth Proportional to 9,116.12, 12,583.38 and 5,340.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.12 : 12,583.38 = 5,340.48 : x
2. Step 2: Convert to fraction form
   9,116.12/12,583.38 = 5,340.48/x
3. Step 3: Cross multiply
   9,116.12x = 12,583.38 × 5,340.48
4. Step 4: Simplify right side
   9,116.12x = 67,201,289.22
5. Step 5: Solve for x
   x = 67,201,289.22/9,116.12
6. Step 6: Final answer
   x = 7,371.70