Finding the Fourth Proportional to 9,486.42, 14,238.38 and 4,809.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,486.42 : 14,238.38 = 4,809.71 : x
2. Step 2: Convert to fraction form
   9,486.42/14,238.38 = 4,809.71/x
3. Step 3: Cross multiply
   9,486.42x = 14,238.38 × 4,809.71
4. Step 4: Simplify right side
   9,486.42x = 68,482,383.43
5. Step 5: Solve for x
   x = 68,482,383.43/9,486.42
6. Step 6: Final answer
   x = 7,218.99