Finding the Fourth Proportional to 42,011.76, 57,974.88 and 23,148.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,011.76 : 57,974.88 = 23,148.72 : x
2. Step 2: Convert to fraction form
   42,011.76/57,974.88 = 23,148.72/x
3. Step 3: Cross multiply
   42,011.76x = 57,974.88 × 23,148.72
4. Step 4: Simplify right side
   42,011.76x = 1,342,044,264.15
5. Step 5: Solve for x
   x = 1,342,044,264.15/42,011.76
6. Step 6: Final answer
   x = 31,944.49