Finding the Fourth Proportional to 25,904.73, 38,861.52 and 8,131.98

Step by Step Solution

1. Step 1: Write the proportion equation
   25,904.73 : 38,861.52 = 8,131.98 : x
2. Step 2: Convert to fraction form
   25,904.73/38,861.52 = 8,131.98/x
3. Step 3: Cross multiply
   25,904.73x = 38,861.52 × 8,131.98
4. Step 4: Simplify right side
   25,904.73x = 316,021,103.41
5. Step 5: Solve for x
   x = 316,021,103.41/25,904.73
6. Step 6: Final answer
   x = 12,199.36