Finding the Fourth Proportional to 22,805.70, 31,472.37 and 13,851.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,805.70 : 31,472.37 = 13,851.78 : x
2. Step 2: Convert to fraction form
   22,805.70/31,472.37 = 13,851.78/x
3. Step 3: Cross multiply
   22,805.70x = 31,472.37 × 13,851.78
4. Step 4: Simplify right side
   22,805.70x = 435,948,345.32
5. Step 5: Solve for x
   x = 435,948,345.32/22,805.70
6. Step 6: Final answer
   x = 19,115.76