Finding the Fourth Proportional to 11,808.27, 17,707.10 and 3,485.39

Step by Step Solution

1. Step 1: Write the proportion equation
   11,808.27 : 17,707.10 = 3,485.39 : x
2. Step 2: Convert to fraction form
   11,808.27/17,707.10 = 3,485.39/x
3. Step 3: Cross multiply
   11,808.27x = 17,707.10 × 3,485.39
4. Step 4: Simplify right side
   11,808.27x = 61,716,043.31
5. Step 5: Solve for x
   x = 61,716,043.31/11,808.27
6. Step 6: Final answer
   x = 5,226.51