Finding the Fourth Proportional to 9,308.28, 12,845.46 and 5,116.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,308.28 : 12,845.46 = 5,116.56 : x
2. Step 2: Convert to fraction form
   9,308.28/12,845.46 = 5,116.56/x
3. Step 3: Cross multiply
   9,308.28x = 12,845.46 × 5,116.56
4. Step 4: Simplify right side
   9,308.28x = 65,724,566.82
5. Step 5: Solve for x
   x = 65,724,566.82/9,308.28
6. Step 6: Final answer
   x = 7,060.87