Finding the Fourth Proportional to 10,323.72, 15,485.31 and 2,928.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,323.72 : 15,485.31 = 2,928.11 : x
2. Step 2: Convert to fraction form
   10,323.72/15,485.31 = 2,928.11/x
3. Step 3: Cross multiply
   10,323.72x = 15,485.31 × 2,928.11
4. Step 4: Simplify right side
   10,323.72x = 45,342,613.64
5. Step 5: Solve for x
   x = 45,342,613.64/10,323.72
6. Step 6: Final answer
   x = 4,392.08