Finding the Fourth Proportional to 23,501.49, 32,431.50 and 12,891.03

Step by Step Solution

1. Step 1: Write the proportion equation
   23,501.49 : 32,431.50 = 12,891.03 : x
2. Step 2: Convert to fraction form
   23,501.49/32,431.50 = 12,891.03/x
3. Step 3: Cross multiply
   23,501.49x = 32,431.50 × 12,891.03
4. Step 4: Simplify right side
   23,501.49x = 418,075,439.45
5. Step 5: Solve for x
   x = 418,075,439.45/23,501.49
6. Step 6: Final answer
   x = 17,789.32