Finding the Fourth Proportional to 9,443.40, 14,174.64 and 3,900.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,443.40 : 14,174.64 = 3,900.04 : x
2. Step 2: Convert to fraction form
   9,443.40/14,174.64 = 3,900.04/x
3. Step 3: Cross multiply
   9,443.40x = 14,174.64 × 3,900.04
4. Step 4: Simplify right side
   9,443.40x = 55,281,662.99
5. Step 5: Solve for x
   x = 55,281,662.99/9,443.40
6. Step 6: Final answer
   x = 5,854.00