Finding the Fourth Proportional to 72,155.08, 108,243.42 and 25,399.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,155.08 : 108,243.42 = 25,399.72 : x
2. Step 2: Convert to fraction form
   72,155.08/108,243.42 = 25,399.72/x
3. Step 3: Cross multiply
   72,155.08x = 108,243.42 × 25,399.72
4. Step 4: Simplify right side
   72,155.08x = 2,749,352,559.84
5. Step 5: Solve for x
   x = 2,749,352,559.84/72,155.08
6. Step 6: Final answer
   x = 38,103.38