Finding the Fourth Proportional to 9,913.60, 14,865.69 and 5,754.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,913.60 : 14,865.69 = 5,754.89 : x
2. Step 2: Convert to fraction form
   9,913.60/14,865.69 = 5,754.89/x
3. Step 3: Cross multiply
   9,913.60x = 14,865.69 × 5,754.89
4. Step 4: Simplify right side
   9,913.60x = 85,550,336.40
5. Step 5: Solve for x
   x = 85,550,336.40/9,913.60
6. Step 6: Final answer
   x = 8,629.59