Finding the Fourth Proportional to 12,353.99, 18,526.39 and 7,667.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,353.99 : 18,526.39 = 7,667.06 : x
2. Step 2: Convert to fraction form
   12,353.99/18,526.39 = 7,667.06/x
3. Step 3: Cross multiply
   12,353.99x = 18,526.39 × 7,667.06
4. Step 4: Simplify right side
   12,353.99x = 142,042,831.91
5. Step 5: Solve for x
   x = 142,042,831.91/12,353.99
6. Step 6: Final answer
   x = 11,497.73