Finding the Fourth Proportional to 25,385.24, 38,081.98 and 7,851

Step by Step Solution

1. Step 1: Write the proportion equation
   25,385.24 : 38,081.98 = 7,851 : x
2. Step 2: Convert to fraction form
   25,385.24/38,081.98 = 7,851/x
3. Step 3: Cross multiply
   25,385.24x = 38,081.98 × 7,851
4. Step 4: Simplify right side
   25,385.24x = 298,981,624.98
5. Step 5: Solve for x
   x = 298,981,624.98/25,385.24
6. Step 6: Final answer
   x = 11,777.77