Finding the Fourth Proportional to 23,120.40, 34,685.40 and 7,536.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,120.40 : 34,685.40 = 7,536.72 : x
2. Step 2: Convert to fraction form
   23,120.40/34,685.40 = 7,536.72/x
3. Step 3: Cross multiply
   23,120.40x = 34,685.40 × 7,536.72
4. Step 4: Simplify right side
   23,120.40x = 261,414,147.89
5. Step 5: Solve for x
   x = 261,414,147.89/23,120.40
6. Step 6: Final answer
   x = 11,306.64