Finding the Fourth Proportional to 23,571.96, 32,529 and 12,961.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,571.96 : 32,529 = 12,961.50 : x
2. Step 2: Convert to fraction form
   23,571.96/32,529 = 12,961.50/x
3. Step 3: Cross multiply
   23,571.96x = 32,529 × 12,961.50
4. Step 4: Simplify right side
   23,571.96x = 421,624,633.50
5. Step 5: Solve for x
   x = 421,624,633.50/23,571.96
6. Step 6: Final answer
   x = 17,886.70