Finding the Fourth Proportional to 11,705.59, 17,554.73 and 3,912.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,705.59 : 17,554.73 = 3,912.58 : x
2. Step 2: Convert to fraction form
   11,705.59/17,554.73 = 3,912.58/x
3. Step 3: Cross multiply
   11,705.59x = 17,554.73 × 3,912.58
4. Step 4: Simplify right side
   11,705.59x = 68,684,295.28
5. Step 5: Solve for x
   x = 68,684,295.28/11,705.59
6. Step 6: Final answer
   x = 5,867.65