Finding the Fourth Proportional to 25,117.78, 37,650.48 and 8,472.10

Step by Step Solution

1. Step 1: Write the proportion equation
   25,117.78 : 37,650.48 = 8,472.10 : x
2. Step 2: Convert to fraction form
   25,117.78/37,650.48 = 8,472.10/x
3. Step 3: Cross multiply
   25,117.78x = 37,650.48 × 8,472.10
4. Step 4: Simplify right side
   25,117.78x = 318,978,631.61
5. Step 5: Solve for x
   x = 318,978,631.61/25,117.78
6. Step 6: Final answer
   x = 12,699.32