Finding the Fourth Proportional to 11,707.91, 17,564.63 and 3,388.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,707.91 : 17,564.63 = 3,388.12 : x
2. Step 2: Convert to fraction form
   11,707.91/17,564.63 = 3,388.12/x
3. Step 3: Cross multiply
   11,707.91x = 17,564.63 × 3,388.12
4. Step 4: Simplify right side
   11,707.91x = 59,510,986.37
5. Step 5: Solve for x
   x = 59,510,986.37/11,707.91
6. Step 6: Final answer
   x = 5,082.97