Finding the Fourth Proportional to 12,499.64, 18,740.12 and 7,568.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.64 : 18,740.12 = 7,568.08 : x
2. Step 2: Convert to fraction form
   12,499.64/18,740.12 = 7,568.08/x
3. Step 3: Cross multiply
   12,499.64x = 18,740.12 × 7,568.08
4. Step 4: Simplify right side
   12,499.64x = 141,826,727.37
5. Step 5: Solve for x
   x = 141,826,727.37/12,499.64
6. Step 6: Final answer
   x = 11,346.46