Finding the Fourth Proportional to 31,564.89, 43,562.21 and 17,420.67

Step by Step Solution

1. Step 1: Write the proportion equation
   31,564.89 : 43,562.21 = 17,420.67 : x
2. Step 2: Convert to fraction form
   31,564.89/43,562.21 = 17,420.67/x
3. Step 3: Cross multiply
   31,564.89x = 43,562.21 × 17,420.67
4. Step 4: Simplify right side
   31,564.89x = 758,882,797.78
5. Step 5: Solve for x
   x = 758,882,797.78/31,564.89
6. Step 6: Final answer
   x = 24,041.99