Finding the Fourth Proportional to 9,478.89, 14,212.25 and 3,936.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,478.89 : 14,212.25 = 3,936.06 : x
2. Step 2: Convert to fraction form
   9,478.89/14,212.25 = 3,936.06/x
3. Step 3: Cross multiply
   9,478.89x = 14,212.25 × 3,936.06
4. Step 4: Simplify right side
   9,478.89x = 55,940,268.74
5. Step 5: Solve for x
   x = 55,940,268.74/9,478.89
6. Step 6: Final answer
   x = 5,901.56