Finding the Fourth Proportional to 9,911.60, 14,830.82 and 5,965.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,911.60 : 14,830.82 = 5,965.28 : x
2. Step 2: Convert to fraction form
   9,911.60/14,830.82 = 5,965.28/x
3. Step 3: Cross multiply
   9,911.60x = 14,830.82 × 5,965.28
4. Step 4: Simplify right side
   9,911.60x = 88,469,964.10
5. Step 5: Solve for x
   x = 88,469,964.10/9,911.60
6. Step 6: Final answer
   x = 8,925.90