Finding the Fourth Proportional to 17,030.72, 23,499.68 and 10,315.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,030.72 : 23,499.68 = 10,315.20 : x
2. Step 2: Convert to fraction form
   17,030.72/23,499.68 = 10,315.20/x
3. Step 3: Cross multiply
   17,030.72x = 23,499.68 × 10,315.20
4. Step 4: Simplify right side
   17,030.72x = 242,403,899.14
5. Step 5: Solve for x
   x = 242,403,899.14/17,030.72
6. Step 6: Final answer
   x = 14,233.33