Finding the Fourth Proportional to 9,158.76, 12,641.13 and 7,584.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,158.76 : 12,641.13 = 7,584.12 : x
2. Step 2: Convert to fraction form
   9,158.76/12,641.13 = 7,584.12/x
3. Step 3: Cross multiply
   9,158.76x = 12,641.13 × 7,584.12
4. Step 4: Simplify right side
   9,158.76x = 95,871,846.86
5. Step 5: Solve for x
   x = 95,871,846.86/9,158.76
6. Step 6: Final answer
   x = 10,467.78