Finding the Fourth Proportional to 9,007.86, 12,431.97 and 5,470.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,007.86 : 12,431.97 = 5,470.14 : x
2. Step 2: Convert to fraction form
   9,007.86/12,431.97 = 5,470.14/x
3. Step 3: Cross multiply
   9,007.86x = 12,431.97 × 5,470.14
4. Step 4: Simplify right side
   9,007.86x = 68,004,616.38
5. Step 5: Solve for x
   x = 68,004,616.38/9,007.86
6. Step 6: Final answer
   x = 7,549.48