Finding the Fourth Proportional to 10,495.20, 15,742.72 and 3,923.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,495.20 : 15,742.72 = 3,923.04 : x
2. Step 2: Convert to fraction form
   10,495.20/15,742.72 = 3,923.04/x
3. Step 3: Cross multiply
   10,495.20x = 15,742.72 × 3,923.04
4. Step 4: Simplify right side
   10,495.20x = 61,759,320.27
5. Step 5: Solve for x
   x = 61,759,320.27/10,495.20
6. Step 6: Final answer
   x = 5,884.53