Finding the Fourth Proportional to 17,412.81, 24,041.81 and 15,380.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,412.81 : 24,041.81 = 15,380.72 : x
2. Step 2: Convert to fraction form
   17,412.81/24,041.81 = 15,380.72/x
3. Step 3: Cross multiply
   17,412.81x = 24,041.81 × 15,380.72
4. Step 4: Simplify right side
   17,412.81x = 369,780,356.30
5. Step 5: Solve for x
   x = 369,780,356.30/17,412.81
6. Step 6: Final answer
   x = 21,236.12