Finding the Fourth Proportional to 42,739.76, 64,081.92 and 17,797.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,739.76 : 64,081.92 = 17,797.04 : x
2. Step 2: Convert to fraction form
   42,739.76/64,081.92 = 17,797.04/x
3. Step 3: Cross multiply
   42,739.76x = 64,081.92 × 17,797.04
4. Step 4: Simplify right side
   42,739.76x = 1,140,468,493.52
5. Step 5: Solve for x
   x = 1,140,468,493.52/42,739.76
6. Step 6: Final answer
   x = 26,684.02