Finding the Fourth Proportional to 25,321.58, 37,978.85 and 8,681.34

Step by Step Solution

1. Step 1: Write the proportion equation
   25,321.58 : 37,978.85 = 8,681.34 : x
2. Step 2: Convert to fraction form
   25,321.58/37,978.85 = 8,681.34/x
3. Step 3: Cross multiply
   25,321.58x = 37,978.85 × 8,681.34
4. Step 4: Simplify right side
   25,321.58x = 329,707,266.25
5. Step 5: Solve for x
   x = 329,707,266.25/25,321.58
6. Step 6: Final answer
   x = 13,020.80