Finding the Fourth Proportional to 42,146.49, 63,222.15 and 15,851.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,146.49 : 63,222.15 = 15,851.46 : x
2. Step 2: Convert to fraction form
   42,146.49/63,222.15 = 15,851.46/x
3. Step 3: Cross multiply
   42,146.49x = 63,222.15 × 15,851.46
4. Step 4: Simplify right side
   42,146.49x = 1,002,163,381.84
5. Step 5: Solve for x
   x = 1,002,163,381.84/42,146.49
6. Step 6: Final answer
   x = 23,778.10