Finding the Fourth Proportional to 25,302.06, 37,942.56 and 8,658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,302.06 : 37,942.56 = 8,658.72 : x
2. Step 2: Convert to fraction form
   25,302.06/37,942.56 = 8,658.72/x
3. Step 3: Cross multiply
   25,302.06x = 37,942.56 × 8,658.72
4. Step 4: Simplify right side
   25,302.06x = 328,534,003.12
5. Step 5: Solve for x
   x = 328,534,003.12/25,302.06
6. Step 6: Final answer
   x = 12,984.48