Finding the Fourth Proportional to 17,387.42, 23,991.42 and 10,218.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,387.42 : 23,991.42 = 10,218.50 : x
2. Step 2: Convert to fraction form
   17,387.42/23,991.42 = 10,218.50/x
3. Step 3: Cross multiply
   17,387.42x = 23,991.42 × 10,218.50
4. Step 4: Simplify right side
   17,387.42x = 245,156,325.27
5. Step 5: Solve for x
   x = 245,156,325.27/17,387.42
6. Step 6: Final answer
   x = 14,099.64