Finding the Fourth Proportional to 9,270.06, 13,906.91 and 3,426.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,270.06 : 13,906.91 = 3,426.72 : x
2. Step 2: Convert to fraction form
   9,270.06/13,906.91 = 3,426.72/x
3. Step 3: Cross multiply
   9,270.06x = 13,906.91 × 3,426.72
4. Step 4: Simplify right side
   9,270.06x = 47,655,086.64
5. Step 5: Solve for x
   x = 47,655,086.64/9,270.06
6. Step 6: Final answer
   x = 5,140.75