Finding the Fourth Proportional to 17,854.57, 26,771.82 and 7,321.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,854.57 : 26,771.82 = 7,321.69 : x
2. Step 2: Convert to fraction form
   17,854.57/26,771.82 = 7,321.69/x
3. Step 3: Cross multiply
   17,854.57x = 26,771.82 × 7,321.69
4. Step 4: Simplify right side
   17,854.57x = 196,014,930.17
5. Step 5: Solve for x
   x = 196,014,930.17/17,854.57
6. Step 6: Final answer
   x = 10,978.42