Finding the Fourth Proportional to 42,015.57, 57,981.21 and 23,152.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42,015.57 : 57,981.21 = 23,152.71 : x
2. Step 2: Convert to fraction form
   42,015.57/57,981.21 = 23,152.71/x
3. Step 3: Cross multiply
   42,015.57x = 57,981.21 × 23,152.71
4. Step 4: Simplify right side
   42,015.57x = 1,342,422,140.58
5. Step 5: Solve for x
   x = 1,342,422,140.58/42,015.57
6. Step 6: Final answer
   x = 31,950.59