Finding the Fourth Proportional to 42,383.85, 63,596.43 and 17,431.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,383.85 : 63,596.43 = 17,431.40 : x
2. Step 2: Convert to fraction form
   42,383.85/63,596.43 = 17,431.40/x
3. Step 3: Cross multiply
   42,383.85x = 63,596.43 × 17,431.40
4. Step 4: Simplify right side
   42,383.85x = 1,108,574,491.92
5. Step 5: Solve for x
   x = 1,108,574,491.92/42,383.85
6. Step 6: Final answer
   x = 26,155.59