Finding the Fourth Proportional to 18,715.59, 25,826.41 and 10,216.02

Step by Step Solution

1. Step 1: Write the proportion equation
   18,715.59 : 25,826.41 = 10,216.02 : x
2. Step 2: Convert to fraction form
   18,715.59/25,826.41 = 10,216.02/x
3. Step 3: Cross multiply
   18,715.59x = 25,826.41 × 10,216.02
4. Step 4: Simplify right side
   18,715.59x = 263,843,095.55
5. Step 5: Solve for x
   x = 263,843,095.55/18,715.59
6. Step 6: Final answer
   x = 14,097.50