Finding the Fourth Proportional to 13,527.50, 18,667.10 and 7,559.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,527.50 : 18,667.10 = 7,559.61 : x
2. Step 2: Convert to fraction form
   13,527.50/18,667.10 = 7,559.61/x
3. Step 3: Cross multiply
   13,527.50x = 18,667.10 × 7,559.61
4. Step 4: Simplify right side
   13,527.50x = 141,115,958.03
5. Step 5: Solve for x
   x = 141,115,958.03/13,527.50
6. Step 6: Final answer
   x = 10,431.79