Finding the Fourth Proportional to 42,022.72, 57,990.50 and 23,159.85

Step by Step Solution

1. Step 1: Write the proportion equation
   42,022.72 : 57,990.50 = 23,159.85 : x
2. Step 2: Convert to fraction form
   42,022.72/57,990.50 = 23,159.85/x
3. Step 3: Cross multiply
   42,022.72x = 57,990.50 × 23,159.85
4. Step 4: Simplify right side
   42,022.72x = 1,343,051,035.01
5. Step 5: Solve for x
   x = 1,343,051,035.01/42,022.72
6. Step 6: Final answer
   x = 31,960.12