Finding the Fourth Proportional to 9,329.52, 12,874.72 and 5,137.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,329.52 : 12,874.72 = 5,137.76 : x
2. Step 2: Convert to fraction form
   9,329.52/12,874.72 = 5,137.76/x
3. Step 3: Cross multiply
   9,329.52x = 12,874.72 × 5,137.76
4. Step 4: Simplify right side
   9,329.52x = 66,147,221.43
5. Step 5: Solve for x
   x = 66,147,221.43/9,329.52
6. Step 6: Final answer
   x = 7,090.10