Finding the Fourth Proportional to 42,019.74, 57,986.58 and 23,157.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.74 : 57,986.58 = 23,157.54 : x
2. Step 2: Convert to fraction form
   42,019.74/57,986.58 = 23,157.54/x
3. Step 3: Cross multiply
   42,019.74x = 57,986.58 × 23,157.54
4. Step 4: Simplify right side
   42,019.74x = 1,342,826,545.81
5. Step 5: Solve for x
   x = 1,342,826,545.81/42,019.74
6. Step 6: Final answer
   x = 31,957.04