Finding the Fourth Proportional to 23,699.87, 32,705.82 and 13,089.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,699.87 : 32,705.82 = 13,089.50 : x
2. Step 2: Convert to fraction form
   23,699.87/32,705.82 = 13,089.50/x
3. Step 3: Cross multiply
   23,699.87x = 32,705.82 × 13,089.50
4. Step 4: Simplify right side
   23,699.87x = 428,102,667.36
5. Step 5: Solve for x
   x = 428,102,667.36/23,699.87
6. Step 6: Final answer
   x = 18,063.51