Finding the Fourth Proportional to 9,904.38, 13,664.16 and 5,654.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,904.38 : 13,664.16 = 5,654.28 : x
2. Step 2: Convert to fraction form
   9,904.38/13,664.16 = 5,654.28/x
3. Step 3: Cross multiply
   9,904.38x = 13,664.16 × 5,654.28
4. Step 4: Simplify right side
   9,904.38x = 77,260,986.60
5. Step 5: Solve for x
   x = 77,260,986.60/9,904.38
6. Step 6: Final answer
   x = 7,800.69