Finding the Fourth Proportional to 8,632.91, 11,909.67 and 5,443.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,632.91 : 11,909.67 = 5,443.69 : x
2. Step 2: Convert to fraction form
   8,632.91/11,909.67 = 5,443.69/x
3. Step 3: Cross multiply
   8,632.91x = 11,909.67 × 5,443.69
4. Step 4: Simplify right side
   8,632.91x = 64,832,491.93
5. Step 5: Solve for x
   x = 64,832,491.93/8,632.91
6. Step 6: Final answer
   x = 7,509.93