Finding the Fourth Proportional to 22,685.45, 31,303.53 and 12,612.27

Step by Step Solution

1. Step 1: Write the proportion equation
   22,685.45 : 31,303.53 = 12,612.27 : x
2. Step 2: Convert to fraction form
   22,685.45/31,303.53 = 12,612.27/x
3. Step 3: Cross multiply
   22,685.45x = 31,303.53 × 12,612.27
4. Step 4: Simplify right side
   22,685.45x = 394,808,572.31
5. Step 5: Solve for x
   x = 394,808,572.31/22,685.45
6. Step 6: Final answer
   x = 17,403.60