Finding the Fourth Proportional to 17,715.24, 24,428.52 and 13,231.98

Step by Step Solution

1. Step 1: Write the proportion equation
   17,715.24 : 24,428.52 = 13,231.98 : x
2. Step 2: Convert to fraction form
   17,715.24/24,428.52 = 13,231.98/x
3. Step 3: Cross multiply
   17,715.24x = 24,428.52 × 13,231.98
4. Step 4: Simplify right side
   17,715.24x = 323,237,688.07
5. Step 5: Solve for x
   x = 323,237,688.07/17,715.24
6. Step 6: Final answer
   x = 18,246.31