Finding the Fourth Proportional to 42,812.52, 64,224.25 and 16,524.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,812.52 : 64,224.25 = 16,524.78 : x
2. Step 2: Convert to fraction form
   42,812.52/64,224.25 = 16,524.78/x
3. Step 3: Cross multiply
   42,812.52x = 64,224.25 × 16,524.78
4. Step 4: Simplify right side
   42,812.52x = 1,061,291,560.60
5. Step 5: Solve for x
   x = 1,061,291,560.60/42,812.52
6. Step 6: Final answer
   x = 24,789.28