Finding the Fourth Proportional to 13,361.52, 18,440.50 and 7,772.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,361.52 : 18,440.50 = 7,772.52 : x
2. Step 2: Convert to fraction form
   13,361.52/18,440.50 = 7,772.52/x
3. Step 3: Cross multiply
   13,361.52x = 18,440.50 × 7,772.52
4. Step 4: Simplify right side
   13,361.52x = 143,329,155.06
5. Step 5: Solve for x
   x = 143,329,155.06/13,361.52
6. Step 6: Final answer
   x = 10,727.01