Finding the Fourth Proportional to 9,947.16, 13,727.20 and 5,470.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,947.16 : 13,727.20 = 5,470.96 : x
2. Step 2: Convert to fraction form
   9,947.16/13,727.20 = 5,470.96/x
3. Step 3: Cross multiply
   9,947.16x = 13,727.20 × 5,470.96
4. Step 4: Simplify right side
   9,947.16x = 75,100,962.11
5. Step 5: Solve for x
   x = 75,100,962.11/9,947.16
6. Step 6: Final answer
   x = 7,549.99