Finding the Fourth Proportional to 22,320.12, 30,800.76 and 12,248.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,320.12 : 30,800.76 = 12,248.31 : x
2. Step 2: Convert to fraction form
   22,320.12/30,800.76 = 12,248.31/x
3. Step 3: Cross multiply
   22,320.12x = 30,800.76 × 12,248.31
4. Step 4: Simplify right side
   22,320.12x = 377,257,256.72
5. Step 5: Solve for x
   x = 377,257,256.72/22,320.12
6. Step 6: Final answer
   x = 16,902.12