Finding the Fourth Proportional to 9,906.30, 13,667.94 and 7,074.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906.30 : 13,667.94 = 7,074.54 : x
2. Step 2: Convert to fraction form
   9,906.30/13,667.94 = 7,074.54/x
3. Step 3: Cross multiply
   9,906.30x = 13,667.94 × 7,074.54
4. Step 4: Simplify right side
   9,906.30x = 96,694,388.25
5. Step 5: Solve for x
   x = 96,694,388.25/9,906.30
6. Step 6: Final answer
   x = 9,760.90