Finding the Fourth Proportional to 42,020.63, 57,989.69 and 23,158.97

Step by Step Solution

1. Step 1: Write the proportion equation
   42,020.63 : 57,989.69 = 23,158.97 : x
2. Step 2: Convert to fraction form
   42,020.63/57,989.69 = 23,158.97/x
3. Step 3: Cross multiply
   42,020.63x = 57,989.69 × 23,158.97
4. Step 4: Simplify right side
   42,020.63x = 1,342,981,085.28
5. Step 5: Solve for x
   x = 1,342,981,085.28/42,020.63
6. Step 6: Final answer
   x = 31,960.05