Finding the Fourth Proportional to 9,308.04, 12,845.10 and 5,116.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,308.04 : 12,845.10 = 5,116.28 : x
2. Step 2: Convert to fraction form
   9,308.04/12,845.10 = 5,116.28/x
3. Step 3: Cross multiply
   9,308.04x = 12,845.10 × 5,116.28
4. Step 4: Simplify right side
   9,308.04x = 65,719,128.23
5. Step 5: Solve for x
   x = 65,719,128.23/9,308.04
6. Step 6: Final answer
   x = 7,060.47