Finding the Fourth Proportional to 11,758.50, 17,639.22 and 3,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,758.50 : 17,639.22 = 3,550.50 : x
2. Step 2: Convert to fraction form
   11,758.50/17,639.22 = 3,550.50/x
3. Step 3: Cross multiply
   11,758.50x = 17,639.22 × 3,550.50
4. Step 4: Simplify right side
   11,758.50x = 62,628,050.61
5. Step 5: Solve for x
   x = 62,628,050.61/11,758.50
6. Step 6: Final answer
   x = 5,326.19