Finding the Fourth Proportional to 9,308.07, 12,845.78 and 5,116.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,308.07 : 12,845.78 = 5,116.32 : x
2. Step 2: Convert to fraction form
   9,308.07/12,845.78 = 5,116.32/x
3. Step 3: Cross multiply
   9,308.07x = 12,845.78 × 5,116.32
4. Step 4: Simplify right side
   9,308.07x = 65,723,095.55
5. Step 5: Solve for x
   x = 65,723,095.55/9,308.07
6. Step 6: Final answer
   x = 7,060.87