Finding the Fourth Proportional to 9,114.61, 12,576.72 and 5,134.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,114.61 : 12,576.72 = 5,134.96 : x
2. Step 2: Convert to fraction form
   9,114.61/12,576.72 = 5,134.96/x
3. Step 3: Cross multiply
   9,114.61x = 12,576.72 × 5,134.96
4. Step 4: Simplify right side
   9,114.61x = 64,580,954.13
5. Step 5: Solve for x
   x = 64,580,954.13/9,114.61
6. Step 6: Final answer
   x = 7,085.43