Finding the Fourth Proportional to 42,026.16, 57,995.76 and 31,319.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,026.16 : 57,995.76 = 31,319.04 : x
2. Step 2: Convert to fraction form
   42,026.16/57,995.76 = 31,319.04/x
3. Step 3: Cross multiply
   42,026.16x = 57,995.76 × 31,319.04
4. Step 4: Simplify right side
   42,026.16x = 1,816,371,527.27
5. Step 5: Solve for x
   x = 1,816,371,527.27/42,026.16
6. Step 6: Final answer
   x = 43,220.02