Finding the Fourth Proportional to 11,086.31, 16,625.88 and 3,688.79

Step by Step Solution

1. Step 1: Write the proportion equation
   11,086.31 : 16,625.88 = 3,688.79 : x
2. Step 2: Convert to fraction form
   11,086.31/16,625.88 = 3,688.79/x
3. Step 3: Cross multiply
   11,086.31x = 16,625.88 × 3,688.79
4. Step 4: Simplify right side
   11,086.31x = 61,329,296.76
5. Step 5: Solve for x
   x = 61,329,296.76/11,086.31
6. Step 6: Final answer
   x = 5,531.98