Finding the Fourth Proportional to 16,897.80, 23,321.72 and 10,092.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,897.80 : 23,321.72 = 10,092.72 : x
2. Step 2: Convert to fraction form
   16,897.80/23,321.72 = 10,092.72/x
3. Step 3: Cross multiply
   16,897.80x = 23,321.72 × 10,092.72
4. Step 4: Simplify right side
   16,897.80x = 235,379,589.88
5. Step 5: Solve for x
   x = 235,379,589.88/16,897.80
6. Step 6: Final answer
   x = 13,929.60