Finding the Fourth Proportional to 16,929.90, 23,364.72 and 9,856.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,929.90 : 23,364.72 = 9,856.98 : x
2. Step 2: Convert to fraction form
   16,929.90/23,364.72 = 9,856.98/x
3. Step 3: Cross multiply
   16,929.90x = 23,364.72 × 9,856.98
4. Step 4: Simplify right side
   16,929.90x = 230,305,577.75
5. Step 5: Solve for x
   x = 230,305,577.75/16,929.90
6. Step 6: Final answer
   x = 13,603.48