Finding the Fourth Proportional to 25,109.82, 37,638.45 and 8,464.10

Step by Step Solution

1. Step 1: Write the proportion equation
   25,109.82 : 37,638.45 = 8,464.10 : x
2. Step 2: Convert to fraction form
   25,109.82/37,638.45 = 8,464.10/x
3. Step 3: Cross multiply
   25,109.82x = 37,638.45 × 8,464.10
4. Step 4: Simplify right side
   25,109.82x = 318,575,557.60
5. Step 5: Solve for x
   x = 318,575,557.60/25,109.82
6. Step 6: Final answer
   x = 12,687.29