Finding the Fourth Proportional to 31,095.29, 42,912.65 and 17,668.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,095.29 : 42,912.65 = 17,668.81 : x
2. Step 2: Convert to fraction form
   31,095.29/42,912.65 = 17,668.81/x
3. Step 3: Cross multiply
   31,095.29x = 42,912.65 × 17,668.81
4. Step 4: Simplify right side
   31,095.29x = 758,215,396.34
5. Step 5: Solve for x
   x = 758,215,396.34/31,095.29
6. Step 6: Final answer
   x = 24,383.61