Finding the Fourth Proportional to 9,308.55, 12,845.66 and 5,116.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,308.55 : 12,845.66 = 5,116.71 : x
2. Step 2: Convert to fraction form
   9,308.55/12,845.66 = 5,116.71/x
3. Step 3: Cross multiply
   9,308.55x = 12,845.66 × 5,116.71
4. Step 4: Simplify right side
   9,308.55x = 65,727,491.40
5. Step 5: Solve for x
   x = 65,727,491.40/9,308.55
6. Step 6: Final answer
   x = 7,060.98