Finding the Fourth Proportional to 42,146.76, 63,229.38 and 15,851.49

Step by Step Solution

1. Step 1: Write the proportion equation
   42,146.76 : 63,229.38 = 15,851.49 : x
2. Step 2: Convert to fraction form
   42,146.76/63,229.38 = 15,851.49/x
3. Step 3: Cross multiply
   42,146.76x = 63,229.38 × 15,851.49
4. Step 4: Simplify right side
   42,146.76x = 1,002,279,884.78
5. Step 5: Solve for x
   x = 1,002,279,884.78/42,146.76
6. Step 6: Final answer
   x = 23,780.71