Finding the Fourth Proportional to 22,521.57, 31,082.39 and 18,738.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,521.57 : 31,082.39 = 18,738.06 : x
2. Step 2: Convert to fraction form
   22,521.57/31,082.39 = 18,738.06/x
3. Step 3: Cross multiply
   22,521.57x = 31,082.39 × 18,738.06
4. Step 4: Simplify right side
   22,521.57x = 582,423,688.76
5. Step 5: Solve for x
   x = 582,423,688.76/22,521.57
6. Step 6: Final answer
   x = 25,860.71