Finding the Fourth Proportional to 25,167.29, 37,756.46 and 7,638.48

Step by Step Solution

1. Step 1: Write the proportion equation
   25,167.29 : 37,756.46 = 7,638.48 : x
2. Step 2: Convert to fraction form
   25,167.29/37,756.46 = 7,638.48/x
3. Step 3: Cross multiply
   25,167.29x = 37,756.46 × 7,638.48
4. Step 4: Simplify right side
   25,167.29x = 288,401,926.39
5. Step 5: Solve for x
   x = 288,401,926.39/25,167.29
6. Step 6: Final answer
   x = 11,459.40