Finding the Fourth Proportional to 9,035.71, 12,469.28 and 5,057.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,035.71 : 12,469.28 = 5,057.59 : x
2. Step 2: Convert to fraction form
   9,035.71/12,469.28 = 5,057.59/x
3. Step 3: Cross multiply
   9,035.71x = 12,469.28 × 5,057.59
4. Step 4: Simplify right side
   9,035.71x = 63,064,418.20
5. Step 5: Solve for x
   x = 63,064,418.20/9,035.71
6. Step 6: Final answer
   x = 6,979.47