Finding the Fourth Proportional to 72,765.71, 109,166.72 and 25,381.49

Step by Step Solution

1. Step 1: Write the proportion equation
   72,765.71 : 109,166.72 = 25,381.49 : x
2. Step 2: Convert to fraction form
   72,765.71/109,166.72 = 25,381.49/x
3. Step 3: Cross multiply
   72,765.71x = 109,166.72 × 25,381.49
4. Step 4: Simplify right side
   72,765.71x = 2,770,814,012.01
5. Step 5: Solve for x
   x = 2,770,814,012.01/72,765.71
6. Step 6: Final answer
   x = 38,078.57