Finding the Fourth Proportional to 10,066.36, 13,886.88 and 7,704.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,066.36 : 13,886.88 = 7,704.40 : x
2. Step 2: Convert to fraction form
   10,066.36/13,886.88 = 7,704.40/x
3. Step 3: Cross multiply
   10,066.36x = 13,886.88 × 7,704.40
4. Step 4: Simplify right side
   10,066.36x = 106,990,078.27
5. Step 5: Solve for x
   x = 106,990,078.27/10,066.36
6. Step 6: Final answer
   x = 10,628.48