Finding the Fourth Proportional to 12,716.77, 17,545.57 and 10,019.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,716.77 : 17,545.57 = 10,019.63 : x
2. Step 2: Convert to fraction form
   12,716.77/17,545.57 = 10,019.63/x
3. Step 3: Cross multiply
   12,716.77x = 17,545.57 × 10,019.63
4. Step 4: Simplify right side
   12,716.77x = 175,800,111.72
5. Step 5: Solve for x
   x = 175,800,111.72/12,716.77
6. Step 6: Final answer
   x = 13,824.27