Finding the Fourth Proportional to 9,774.08, 14,657.46 and 3,928.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,774.08 : 14,657.46 = 3,928.72 : x
2. Step 2: Convert to fraction form
   9,774.08/14,657.46 = 3,928.72/x
3. Step 3: Cross multiply
   9,774.08x = 14,657.46 × 3,928.72
4. Step 4: Simplify right side
   9,774.08x = 57,585,056.25
5. Step 5: Solve for x
   x = 57,585,056.25/9,774.08
6. Step 6: Final answer
   x = 5,891.61