Finding the Fourth Proportional to 17,851.50, 24,601.10 and 13,072.91

Step by Step Solution

1. Step 1: Write the proportion equation
   17,851.50 : 24,601.10 = 13,072.91 : x
2. Step 2: Convert to fraction form
   17,851.50/24,601.10 = 13,072.91/x
3. Step 3: Cross multiply
   17,851.50x = 24,601.10 × 13,072.91
4. Step 4: Simplify right side
   17,851.50x = 321,607,777.83
5. Step 5: Solve for x
   x = 321,607,777.83/17,851.50
6. Step 6: Final answer
   x = 18,015.73