Finding the Fourth Proportional to 22,475.91, 31,014.83 and 12,912.68

Step by Step Solution

1. Step 1: Write the proportion equation
   22,475.91 : 31,014.83 = 12,912.68 : x
2. Step 2: Convert to fraction form
   22,475.91/31,014.83 = 12,912.68/x
3. Step 3: Cross multiply
   22,475.91x = 31,014.83 × 12,912.68
4. Step 4: Simplify right side
   22,475.91x = 400,484,684.86
5. Step 5: Solve for x
   x = 400,484,684.86/22,475.91
6. Step 6: Final answer
   x = 17,818.39