Finding the Fourth Proportional to 9,113.61, 12,576.56 and 5,134.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,113.61 : 12,576.56 = 5,134.49 : x
2. Step 2: Convert to fraction form
   9,113.61/12,576.56 = 5,134.49/x
3. Step 3: Cross multiply
   9,113.61x = 12,576.56 × 5,134.49
4. Step 4: Simplify right side
   9,113.61x = 64,574,133.00
5. Step 5: Solve for x
   x = 64,574,133.00/9,113.61
6. Step 6: Final answer
   x = 7,085.46