Finding the Fourth Proportional to 16,820.10, 23,211.72 and 9,750.62

Step by Step Solution

1. Step 1: Write the proportion equation
   16,820.10 : 23,211.72 = 9,750.62 : x
2. Step 2: Convert to fraction form
   16,820.10/23,211.72 = 9,750.62/x
3. Step 3: Cross multiply
   16,820.10x = 23,211.72 × 9,750.62
4. Step 4: Simplify right side
   16,820.10x = 226,328,661.27
5. Step 5: Solve for x
   x = 226,328,661.27/16,820.10
6. Step 6: Final answer
   x = 13,455.85