Finding the Fourth Proportional to 42,429.60, 63,644.64 and 16,141.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,429.60 : 63,644.64 = 16,141.80 : x
2. Step 2: Convert to fraction form
   42,429.60/63,644.64 = 16,141.80/x
3. Step 3: Cross multiply
   42,429.60x = 63,644.64 × 16,141.80
4. Step 4: Simplify right side
   42,429.60x = 1,027,339,049.95
5. Step 5: Solve for x
   x = 1,027,339,049.95/42,429.60
6. Step 6: Final answer
   x = 24,212.79