Finding the Fourth Proportional to 9,109.29, 12,576.62 and 7,434.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,109.29 : 12,576.62 = 7,434.69 : x
2. Step 2: Convert to fraction form
   9,109.29/12,576.62 = 7,434.69/x
3. Step 3: Cross multiply
   9,109.29x = 12,576.62 × 7,434.69
4. Step 4: Simplify right side
   9,109.29x = 93,503,238.07
5. Step 5: Solve for x
   x = 93,503,238.07/9,109.29
6. Step 6: Final answer
   x = 10,264.61