Finding the Fourth Proportional to 17,469.98, 26,196.88 and 5,621.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,469.98 : 26,196.88 = 5,621.55 : x
2. Step 2: Convert to fraction form
   17,469.98/26,196.88 = 5,621.55/x
3. Step 3: Cross multiply
   17,469.98x = 26,196.88 × 5,621.55
4. Step 4: Simplify right side
   17,469.98x = 147,267,070.76
5. Step 5: Solve for x
   x = 147,267,070.76/17,469.98
6. Step 6: Final answer
   x = 8,429.72