Finding the Fourth Proportional to 42,015.69, 57,981.54 and 23,152.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,015.69 : 57,981.54 = 23,152.81 : x
2. Step 2: Convert to fraction form
   42,015.69/57,981.54 = 23,152.81/x
3. Step 3: Cross multiply
   42,015.69x = 57,981.54 × 23,152.81
4. Step 4: Simplify right side
   42,015.69x = 1,342,435,579.13
5. Step 5: Solve for x
   x = 1,342,435,579.13/42,015.69
6. Step 6: Final answer
   x = 31,950.82