Finding the Fourth Proportional to 11,661.99, 17,487.82 and 3,340.11

Step by Step Solution

1. Step 1: Write the proportion equation
   11,661.99 : 17,487.82 = 3,340.11 : x
2. Step 2: Convert to fraction form
   11,661.99/17,487.82 = 3,340.11/x
3. Step 3: Cross multiply
   11,661.99x = 17,487.82 × 3,340.11
4. Step 4: Simplify right side
   11,661.99x = 58,411,242.46
5. Step 5: Solve for x
   x = 58,411,242.46/11,661.99
6. Step 6: Final answer
   x = 5,008.69