Finding the Fourth Proportional to 16,805.90, 23,191.25 and 9,250.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,805.90 : 23,191.25 = 9,250.76 : x
2. Step 2: Convert to fraction form
   16,805.90/23,191.25 = 9,250.76/x
3. Step 3: Cross multiply
   16,805.90x = 23,191.25 × 9,250.76
4. Step 4: Simplify right side
   16,805.90x = 214,536,699.57
5. Step 5: Solve for x
   x = 214,536,699.57/16,805.90
6. Step 6: Final answer
   x = 12,765.56