Finding the Fourth Proportional to 22,623.38, 31,224.01 and 12,555.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,623.38 : 31,224.01 = 12,555.05 : x
2. Step 2: Convert to fraction form
   22,623.38/31,224.01 = 12,555.05/x
3. Step 3: Cross multiply
   22,623.38x = 31,224.01 × 12,555.05
4. Step 4: Simplify right side
   22,623.38x = 392,019,006.75
5. Step 5: Solve for x
   x = 392,019,006.75/22,623.38
6. Step 6: Final answer
   x = 17,328.05