Finding the Fourth Proportional to 11,837.50, 17,679.49 and 10,724.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,837.50 : 17,679.49 = 10,724.69 : x
2. Step 2: Convert to fraction form
   11,837.50/17,679.49 = 10,724.69/x
3. Step 3: Cross multiply
   11,837.50x = 17,679.49 × 10,724.69
4. Step 4: Simplify right side
   11,837.50x = 189,607,049.61
5. Step 5: Solve for x
   x = 189,607,049.61/11,837.50
6. Step 6: Final answer
   x = 16,017.50