Finding the Fourth Proportional to 42,965.92, 64,458.24 and 17,665.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,965.92 : 64,458.24 = 17,665.62 : x
2. Step 2: Convert to fraction form
   42,965.92/64,458.24 = 17,665.62/x
3. Step 3: Cross multiply
   42,965.92x = 64,458.24 × 17,665.62
4. Step 4: Simplify right side
   42,965.92x = 1,138,694,773.71
5. Step 5: Solve for x
   x = 1,138,694,773.71/42,965.92
6. Step 6: Final answer
   x = 26,502.28