Finding the Fourth Proportional to 12,633.86, 18,951.46 and 5,612.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,633.86 : 18,951.46 = 5,612.22 : x
2. Step 2: Convert to fraction form
   12,633.86/18,951.46 = 5,612.22/x
3. Step 3: Cross multiply
   12,633.86x = 18,951.46 × 5,612.22
4. Step 4: Simplify right side
   12,633.86x = 106,359,748.81
5. Step 5: Solve for x
   x = 106,359,748.81/12,633.86
6. Step 6: Final answer
   x = 8,418.62