Finding the Fourth Proportional to 22,824.16, 31,487.96 and 13,870.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,824.16 : 31,487.96 = 13,870.22 : x
2. Step 2: Convert to fraction form
   22,824.16/31,487.96 = 13,870.22/x
3. Step 3: Cross multiply
   22,824.16x = 31,487.96 × 13,870.22
4. Step 4: Simplify right side
   22,824.16x = 436,744,932.55
5. Step 5: Solve for x
   x = 436,744,932.55/22,824.16
6. Step 6: Final answer
   x = 19,135.20