Finding the Fourth Proportional to 22,468.13, 31,004.20 and 12,904.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,468.13 : 31,004.20 = 12,904.98 : x
2. Step 2: Convert to fraction form
   22,468.13/31,004.20 = 12,904.98/x
3. Step 3: Cross multiply
   22,468.13x = 31,004.20 × 12,904.98
4. Step 4: Simplify right side
   22,468.13x = 400,108,580.92
5. Step 5: Solve for x
   x = 400,108,580.92/22,468.13
6. Step 6: Final answer
   x = 17,807.83