Finding the Fourth Proportional to 9,036.23, 12,469.88 and 5,057.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.23 : 12,469.88 = 5,057.37 : x
2. Step 2: Convert to fraction form
   9,036.23/12,469.88 = 5,057.37/x
3. Step 3: Cross multiply
   9,036.23x = 12,469.88 × 5,057.37
4. Step 4: Simplify right side
   9,036.23x = 63,064,809.66
5. Step 5: Solve for x
   x = 63,064,809.66/9,036.23
6. Step 6: Final answer
   x = 6,979.11