Finding the Fourth Proportional to 23,120.88, 34,686.78 and 7,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,120.88 : 34,686.78 = 7,538.50 : x
2. Step 2: Convert to fraction form
   23,120.88/34,686.78 = 7,538.50/x
3. Step 3: Cross multiply
   23,120.88x = 34,686.78 × 7,538.50
4. Step 4: Simplify right side
   23,120.88x = 261,486,291.03
5. Step 5: Solve for x
   x = 261,486,291.03/23,120.88
6. Step 6: Final answer
   x = 11,309.53