Finding the Fourth Proportional to 11,650.29, 17,478.16 and 3,859.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,650.29 : 17,478.16 = 3,859.10 : x
2. Step 2: Convert to fraction form
   11,650.29/17,478.16 = 3,859.10/x
3. Step 3: Cross multiply
   11,650.29x = 17,478.16 × 3,859.10
4. Step 4: Simplify right side
   11,650.29x = 67,449,967.26
5. Step 5: Solve for x
   x = 67,449,967.26/11,650.29
6. Step 6: Final answer
   x = 5,789.55