Finding the Fourth Proportional to 22,847.30, 31,532.21 and 12,776.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,847.30 : 31,532.21 = 12,776.30 : x
2. Step 2: Convert to fraction form
   22,847.30/31,532.21 = 12,776.30/x
3. Step 3: Cross multiply
   22,847.30x = 31,532.21 × 12,776.30
4. Step 4: Simplify right side
   22,847.30x = 402,864,940.83
5. Step 5: Solve for x
   x = 402,864,940.83/22,847.30
6. Step 6: Final answer
   x = 17,632.94