Finding the Fourth Proportional to 8,108.52, 12,139.08 and 7,330.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,108.52 : 12,139.08 = 7,330.31 : x
2. Step 2: Convert to fraction form
   8,108.52/12,139.08 = 7,330.31/x
3. Step 3: Cross multiply
   8,108.52x = 12,139.08 × 7,330.31
4. Step 4: Simplify right side
   8,108.52x = 88,983,219.51
5. Step 5: Solve for x
   x = 88,983,219.51/8,108.52
6. Step 6: Final answer
   x = 10,974.04