Finding the Fourth Proportional to 19,824.72, 29,583.89 and 17,615.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,824.72 : 29,583.89 = 17,615.88 : x
2. Step 2: Convert to fraction form
   19,824.72/29,583.89 = 17,615.88/x
3. Step 3: Cross multiply
   19,824.72x = 29,583.89 × 17,615.88
4. Step 4: Simplify right side
   19,824.72x = 521,146,168.09
5. Step 5: Solve for x
   x = 521,146,168.09/19,824.72
6. Step 6: Final answer
   x = 26,287.69