Finding the Fourth Proportional to 13,527.89, 18,668.59 and 7,559.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,527.89 : 18,668.59 = 7,559.81 : x
2. Step 2: Convert to fraction form
   13,527.89/18,668.59 = 7,559.81/x
3. Step 3: Cross multiply
   13,527.89x = 18,668.59 × 7,559.81
4. Step 4: Simplify right side
   13,527.89x = 141,130,993.37
5. Step 5: Solve for x
   x = 141,130,993.37/13,527.89
6. Step 6: Final answer
   x = 10,432.59