Finding the Fourth Proportional to 9,039.36, 12,472.53 and 5,680.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,039.36 : 12,472.53 = 5,680.23 : x
2. Step 2: Convert to fraction form
   9,039.36/12,472.53 = 5,680.23/x
3. Step 3: Cross multiply
   9,039.36x = 12,472.53 × 5,680.23
4. Step 4: Simplify right side
   9,039.36x = 70,846,839.08
5. Step 5: Solve for x
   x = 70,846,839.08/9,039.36
6. Step 6: Final answer
   x = 7,837.59