Finding the Fourth Proportional to 42,019.75, 57,990.90 and 23,160.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.75 : 57,990.90 = 23,160.52 : x
2. Step 2: Convert to fraction form
   42,019.75/57,990.90 = 23,160.52/x
3. Step 3: Cross multiply
   42,019.75x = 57,990.90 × 23,160.52
4. Step 4: Simplify right side
   42,019.75x = 1,343,099,399.27
5. Step 5: Solve for x
   x = 1,343,099,399.27/42,019.75
6. Step 6: Final answer
   x = 31,963.53