Finding the Fourth Proportional to 16,820.84, 23,212.42 and 9,747.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,820.84 : 23,212.42 = 9,747.08 : x
2. Step 2: Convert to fraction form
   16,820.84/23,212.42 = 9,747.08/x
3. Step 3: Cross multiply
   16,820.84x = 23,212.42 × 9,747.08
4. Step 4: Simplify right side
   16,820.84x = 226,253,314.73
5. Step 5: Solve for x
   x = 226,253,314.73/16,820.84
6. Step 6: Final answer
   x = 13,450.77