Finding the Fourth Proportional to 17,619.78, 24,315.63 and 9,661.53

Step by Step Solution

1. Step 1: Write the proportion equation
   17,619.78 : 24,315.63 = 9,661.53 : x
2. Step 2: Convert to fraction form
   17,619.78/24,315.63 = 9,661.53/x
3. Step 3: Cross multiply
   17,619.78x = 24,315.63 × 9,661.53
4. Step 4: Simplify right side
   17,619.78x = 234,926,188.71
5. Step 5: Solve for x
   x = 234,926,188.71/17,619.78
6. Step 6: Final answer
   x = 13,333.09