Finding the Fourth Proportional to 22,719.67, 31,353.84 and 12,372.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,719.67 : 31,353.84 = 12,372.10 : x
2. Step 2: Convert to fraction form
   22,719.67/31,353.84 = 12,372.10/x
3. Step 3: Cross multiply
   22,719.67x = 31,353.84 × 12,372.10
4. Step 4: Simplify right side
   22,719.67x = 387,912,843.86
5. Step 5: Solve for x
   x = 387,912,843.86/22,719.67
6. Step 6: Final answer
   x = 17,073.88