Finding the Fourth Proportional to 22,780.08, 31,419.53 and 16,728.41

Step by Step Solution

1. Step 1: Write the proportion equation
   22,780.08 : 31,419.53 = 16,728.41 : x
2. Step 2: Convert to fraction form
   22,780.08/31,419.53 = 16,728.41/x
3. Step 3: Cross multiply
   22,780.08x = 31,419.53 × 16,728.41
4. Step 4: Simplify right side
   22,780.08x = 525,598,900.22
5. Step 5: Solve for x
   x = 525,598,900.22/22,780.08
6. Step 6: Final answer
   x = 23,072.74