Finding the Fourth Proportional to 9,819.91, 14,754.47 and 9,229.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.91 : 14,754.47 = 9,229.42 : x
2. Step 2: Convert to fraction form
   9,819.91/14,754.47 = 9,229.42/x
3. Step 3: Cross multiply
   9,819.91x = 14,754.47 × 9,229.42
4. Step 4: Simplify right side
   9,819.91x = 136,175,200.51
5. Step 5: Solve for x
   x = 136,175,200.51/9,819.91
6. Step 6: Final answer
   x = 13,867.26