Finding the Fourth Proportional to 17,892.91, 24,715.46 and 13,618

Step by Step Solution

1. Step 1: Write the proportion equation
   17,892.91 : 24,715.46 = 13,618 : x
2. Step 2: Convert to fraction form
   17,892.91/24,715.46 = 13,618/x
3. Step 3: Cross multiply
   17,892.91x = 24,715.46 × 13,618
4. Step 4: Simplify right side
   17,892.91x = 336,575,134.28
5. Step 5: Solve for x
   x = 336,575,134.28/17,892.91
6. Step 6: Final answer
   x = 18,810.53