Finding the Fourth Proportional to 13,618.50, 18,793.47 and 7,568.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,618.50 : 18,793.47 = 7,568.71 : x
2. Step 2: Convert to fraction form
   13,618.50/18,793.47 = 7,568.71/x
3. Step 3: Cross multiply
   13,618.50x = 18,793.47 × 7,568.71
4. Step 4: Simplify right side
   13,618.50x = 142,242,248.96
5. Step 5: Solve for x
   x = 142,242,248.96/13,618.50
6. Step 6: Final answer
   x = 10,444.78