Finding the Fourth Proportional to 9,036.81, 12,470.82 and 5,057.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.81 : 12,470.82 = 5,057.62 : x
2. Step 2: Convert to fraction form
   9,036.81/12,470.82 = 5,057.62/x
3. Step 3: Cross multiply
   9,036.81x = 12,470.82 × 5,057.62
4. Step 4: Simplify right side
   9,036.81x = 63,072,668.65
5. Step 5: Solve for x
   x = 63,072,668.65/9,036.81
6. Step 6: Final answer
   x = 6,979.53