Finding the Fourth Proportional to 42,496.80, 63,742.72 and 16,204.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,496.80 : 63,742.72 = 16,204.20 : x
2. Step 2: Convert to fraction form
   42,496.80/63,742.72 = 16,204.20/x
3. Step 3: Cross multiply
   42,496.80x = 63,742.72 × 16,204.20
4. Step 4: Simplify right side
   42,496.80x = 1,032,899,783.42
5. Step 5: Solve for x
   x = 1,032,899,783.42/42,496.80
6. Step 6: Final answer
   x = 24,305.35