Finding the Fourth Proportional to 13,527.40, 18,667.90 and 7,559.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,527.40 : 18,667.90 = 7,559.32 : x
2. Step 2: Convert to fraction form
   13,527.40/18,667.90 = 7,559.32/x
3. Step 3: Cross multiply
   13,527.40x = 18,667.90 × 7,559.32
4. Step 4: Simplify right side
   13,527.40x = 141,116,536.49
5. Step 5: Solve for x
   x = 141,116,536.49/13,527.40
6. Step 6: Final answer
   x = 10,431.91