Finding the Fourth Proportional to 31,826.81, 43,922.39 and 17,679.67

Step by Step Solution

1. Step 1: Write the proportion equation
   31,826.81 : 43,922.39 = 17,679.67 : x
2. Step 2: Convert to fraction form
   31,826.81/43,922.39 = 17,679.67/x
3. Step 3: Cross multiply
   31,826.81x = 43,922.39 × 17,679.67
4. Step 4: Simplify right side
   31,826.81x = 776,533,162.61
5. Step 5: Solve for x
   x = 776,533,162.61/31,826.81
6. Step 6: Final answer
   x = 24,398.71