Finding the Fourth Proportional to 11,383.98, 17,077.17 and 3,591.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,383.98 : 17,077.17 = 3,591.78 : x
2. Step 2: Convert to fraction form
   11,383.98/17,077.17 = 3,591.78/x
3. Step 3: Cross multiply
   11,383.98x = 17,077.17 × 3,591.78
4. Step 4: Simplify right side
   11,383.98x = 61,337,437.66
5. Step 5: Solve for x
   x = 61,337,437.66/11,383.98
6. Step 6: Final answer
   x = 5,388.05