Finding the Fourth Proportional to 21,104.88, 31,659.14 and 5,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,104.88 : 31,659.14 = 5,522.50 : x
2. Step 2: Convert to fraction form
   21,104.88/31,659.14 = 5,522.50/x
3. Step 3: Cross multiply
   21,104.88x = 31,659.14 × 5,522.50
4. Step 4: Simplify right side
   21,104.88x = 174,837,600.65
5. Step 5: Solve for x
   x = 174,837,600.65/21,104.88
6. Step 6: Final answer
   x = 8,284.23