Finding the Fourth Proportional to 9,478.56, 14,218.42 and 2,904.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,478.56 : 14,218.42 = 2,904.81 : x
2. Step 2: Convert to fraction form
   9,478.56/14,218.42 = 2,904.81/x
3. Step 3: Cross multiply
   9,478.56x = 14,218.42 × 2,904.81
4. Step 4: Simplify right side
   9,478.56x = 41,301,808.60
5. Step 5: Solve for x
   x = 41,301,808.60/9,478.56
6. Step 6: Final answer
   x = 4,357.39