Finding the Fourth Proportional to 8,632.91, 12,941.87 and 4,470.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,632.91 : 12,941.87 = 4,470.72 : x
2. Step 2: Convert to fraction form
   8,632.91/12,941.87 = 4,470.72/x
3. Step 3: Cross multiply
   8,632.91x = 12,941.87 × 4,470.72
4. Step 4: Simplify right side
   8,632.91x = 57,859,454.69
5. Step 5: Solve for x
   x = 57,859,454.69/8,632.91
6. Step 6: Final answer
   x = 6,702.20