Finding the Fourth Proportional to 16,820.91, 23,216.99 and 9,751.46

Step by Step Solution

1. Step 1: Write the proportion equation
   16,820.91 : 23,216.99 = 9,751.46 : x
2. Step 2: Convert to fraction form
   16,820.91/23,216.99 = 9,751.46/x
3. Step 3: Cross multiply
   16,820.91x = 23,216.99 × 9,751.46
4. Step 4: Simplify right side
   16,820.91x = 226,399,384.46
5. Step 5: Solve for x
   x = 226,399,384.46/16,820.91
6. Step 6: Final answer
   x = 13,459.40