Finding the Fourth Proportional to 22,880.08, 31,571.90 and 12,807.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,880.08 : 31,571.90 = 12,807.12 : x
2. Step 2: Convert to fraction form
   22,880.08/31,571.90 = 12,807.12/x
3. Step 3: Cross multiply
   22,880.08x = 31,571.90 × 12,807.12
4. Step 4: Simplify right side
   22,880.08x = 404,345,111.93
5. Step 5: Solve for x
   x = 404,345,111.93/22,880.08
6. Step 6: Final answer
   x = 17,672.36