Finding the Fourth Proportional to 42,951.60, 64,428.48 and 16,662.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,951.60 : 64,428.48 = 16,662.24 : x
2. Step 2: Convert to fraction form
   42,951.60/64,428.48 = 16,662.24/x
3. Step 3: Cross multiply
   42,951.60x = 64,428.48 × 16,662.24
4. Step 4: Simplify right side
   42,951.60x = 1,073,522,796.60
5. Step 5: Solve for x
   x = 1,073,522,796.60/42,951.60
6. Step 6: Final answer
   x = 24,993.78