Finding the Fourth Proportional to 11,661.91, 17,488.31 and 5,083.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,661.91 : 17,488.31 = 5,083.59 : x
2. Step 2: Convert to fraction form
   11,661.91/17,488.31 = 5,083.59/x
3. Step 3: Cross multiply
   11,661.91x = 17,488.31 × 5,083.59
4. Step 4: Simplify right side
   11,661.91x = 88,903,438.00
5. Step 5: Solve for x
   x = 88,903,438.00/11,661.91
6. Step 6: Final answer
   x = 7,623.40