Finding the Fourth Proportional to 42,269.47, 63,431.89 and 15,974.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,269.47 : 63,431.89 = 15,974.22 : x
2. Step 2: Convert to fraction form
   42,269.47/63,431.89 = 15,974.22/x
3. Step 3: Cross multiply
   42,269.47x = 63,431.89 × 15,974.22
4. Step 4: Simplify right side
   42,269.47x = 1,013,274,965.88
5. Step 5: Solve for x
   x = 1,013,274,965.88/42,269.47
6. Step 6: Final answer
   x = 23,971.79