Finding the Fourth Proportional to 9,113.30, 12,576.41 and 5,134.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,113.30 : 12,576.41 = 5,134.49 : x
2. Step 2: Convert to fraction form
   9,113.30/12,576.41 = 5,134.49/x
3. Step 3: Cross multiply
   9,113.30x = 12,576.41 × 5,134.49
4. Step 4: Simplify right side
   9,113.30x = 64,573,451.38
5. Step 5: Solve for x
   x = 64,573,451.38/9,113.30
6. Step 6: Final answer
   x = 7,085.63