Finding the Fourth Proportional to 25,287.34, 37,929.93 and 8,648.86

Step by Step Solution

1. Step 1: Write the proportion equation
   25,287.34 : 37,929.93 = 8,648.86 : x
2. Step 2: Convert to fraction form
   25,287.34/37,929.93 = 8,648.86/x
3. Step 3: Cross multiply
   25,287.34x = 37,929.93 × 8,648.86
4. Step 4: Simplify right side
   25,287.34x = 328,050,654.38
5. Step 5: Solve for x
   x = 328,050,654.38/25,287.34
6. Step 6: Final answer
   x = 12,972.92