Finding the Fourth Proportional to 42,022.27, 57,990.72 and 23,159.39

Step by Step Solution

1. Step 1: Write the proportion equation
   42,022.27 : 57,990.72 = 23,159.39 : x
2. Step 2: Convert to fraction form
   42,022.27/57,990.72 = 23,159.39/x
3. Step 3: Cross multiply
   42,022.27x = 57,990.72 × 23,159.39
4. Step 4: Simplify right side
   42,022.27x = 1,343,029,700.86
5. Step 5: Solve for x
   x = 1,343,029,700.86/42,022.27
6. Step 6: Final answer
   x = 31,959.95