Finding the Fourth Proportional to 13,574.72, 18,733.49 and 7,606.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,574.72 : 18,733.49 = 7,606.78 : x
2. Step 2: Convert to fraction form
   13,574.72/18,733.49 = 7,606.78/x
3. Step 3: Cross multiply
   13,574.72x = 18,733.49 × 7,606.78
4. Step 4: Simplify right side
   13,574.72x = 142,501,480.72
5. Step 5: Solve for x
   x = 142,501,480.72/13,574.72
6. Step 6: Final answer
   x = 10,497.56