Finding the Fourth Proportional to 23,539.50, 32,487.39 and 13,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,539.50 : 32,487.39 = 13,603.50 : x
2. Step 2: Convert to fraction form
   23,539.50/32,487.39 = 13,603.50/x
3. Step 3: Cross multiply
   23,539.50x = 32,487.39 × 13,603.50
4. Step 4: Simplify right side
   23,539.50x = 441,942,209.87
5. Step 5: Solve for x
   x = 441,942,209.87/23,539.50
6. Step 6: Final answer
   x = 18,774.49