Finding the Fourth Proportional to 13,568.52, 18,724.70 and 7,518.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,568.52 : 18,724.70 = 7,518.94 : x
2. Step 2: Convert to fraction form
   13,568.52/18,724.70 = 7,518.94/x
3. Step 3: Cross multiply
   13,568.52x = 18,724.70 × 7,518.94
4. Step 4: Simplify right side
   13,568.52x = 140,789,895.82
5. Step 5: Solve for x
   x = 140,789,895.82/13,568.52
6. Step 6: Final answer
   x = 10,376.22