Finding the Fourth Proportional to 9,450.72, 13,039.02 and 5,470.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,450.72 : 13,039.02 = 5,470.80 : x
2. Step 2: Convert to fraction form
   9,450.72/13,039.02 = 5,470.80/x
3. Step 3: Cross multiply
   9,450.72x = 13,039.02 × 5,470.80
4. Step 4: Simplify right side
   9,450.72x = 71,333,870.62
5. Step 5: Solve for x
   x = 71,333,870.62/9,450.72
6. Step 6: Final answer
   x = 7,547.98