Finding the Fourth Proportional to 22,981.60, 31,734.32 and 22,238.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,981.60 : 31,734.32 = 22,238.56 : x
2. Step 2: Convert to fraction form
   22,981.60/31,734.32 = 22,238.56/x
3. Step 3: Cross multiply
   22,981.60x = 31,734.32 × 22,238.56
4. Step 4: Simplify right side
   22,981.60x = 705,725,579.38
5. Step 5: Solve for x
   x = 705,725,579.38/22,981.60
6. Step 6: Final answer
   x = 30,708.29