Finding the Fourth Proportional to 12,487.50, 17,232.81 and 7,182.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,487.50 : 17,232.81 = 7,182.63 : x
2. Step 2: Convert to fraction form
   12,487.50/17,232.81 = 7,182.63/x
3. Step 3: Cross multiply
   12,487.50x = 17,232.81 × 7,182.63
4. Step 4: Simplify right side
   12,487.50x = 123,776,898.09
5. Step 5: Solve for x
   x = 123,776,898.09/12,487.50
6. Step 6: Final answer
   x = 9,912.06