Finding the Fourth Proportional to 16,969.98, 23,418.59 and 9,897.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,969.98 : 23,418.59 = 9,897.76 : x
2. Step 2: Convert to fraction form
   16,969.98/23,418.59 = 9,897.76/x
3. Step 3: Cross multiply
   16,969.98x = 23,418.59 × 9,897.76
4. Step 4: Simplify right side
   16,969.98x = 231,791,583.36
5. Step 5: Solve for x
   x = 231,791,583.36/16,969.98
6. Step 6: Final answer
   x = 13,658.92