Finding the Fourth Proportional to 9,036.46, 12,470.58 and 5,057.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.46 : 12,470.58 = 5,057.48 : x
2. Step 2: Convert to fraction form
   9,036.46/12,470.58 = 5,057.48/x
3. Step 3: Cross multiply
   9,036.46x = 12,470.58 × 5,057.48
4. Step 4: Simplify right side
   9,036.46x = 63,069,708.94
5. Step 5: Solve for x
   x = 63,069,708.94/9,036.46
6. Step 6: Final answer
   x = 6,979.47