Finding the Fourth Proportional to 42,561.78, 63,840.24 and 16,269.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,561.78 : 63,840.24 = 16,269.18 : x
2. Step 2: Convert to fraction form
   42,561.78/63,840.24 = 16,269.18/x
3. Step 3: Cross multiply
   42,561.78x = 63,840.24 × 16,269.18
4. Step 4: Simplify right side
   42,561.78x = 1,038,628,355.80
5. Step 5: Solve for x
   x = 1,038,628,355.80/42,561.78
6. Step 6: Final answer
   x = 24,402.84