Finding the Fourth Proportional to 11,805.93, 17,708.49 and 3,485.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,805.93 : 17,708.49 = 3,485.61 : x
2. Step 2: Convert to fraction form
   11,805.93/17,708.49 = 3,485.61/x
3. Step 3: Cross multiply
   11,805.93x = 17,708.49 × 3,485.61
4. Step 4: Simplify right side
   11,805.93x = 61,724,889.83
5. Step 5: Solve for x
   x = 61,724,889.83/11,805.93
6. Step 6: Final answer
   x = 5,228.30