Finding the Fourth Proportional to 42,729.73, 64,093.88 and 16,440.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,729.73 : 64,093.88 = 16,440.17 : x
2. Step 2: Convert to fraction form
   42,729.73/64,093.88 = 16,440.17/x
3. Step 3: Cross multiply
   42,729.73x = 64,093.88 × 16,440.17
4. Step 4: Simplify right side
   42,729.73x = 1,053,714,003.79
5. Step 5: Solve for x
   x = 1,053,714,003.79/42,729.73
6. Step 6: Final answer
   x = 24,659.97