Finding the Fourth Proportional to 11,735.76, 17,605.50 and 3,942.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,735.76 : 17,605.50 = 3,942.78 : x
2. Step 2: Convert to fraction form
   11,735.76/17,605.50 = 3,942.78/x
3. Step 3: Cross multiply
   11,735.76x = 17,605.50 × 3,942.78
4. Step 4: Simplify right side
   11,735.76x = 69,414,613.29
5. Step 5: Solve for x
   x = 69,414,613.29/11,735.76
6. Step 6: Final answer
   x = 5,914.79