Finding the Fourth Proportional to 16,662.37, 25,005.87 and 7,897.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,662.37 : 25,005.87 = 7,897.30 : x
2. Step 2: Convert to fraction form
   16,662.37/25,005.87 = 7,897.30/x
3. Step 3: Cross multiply
   16,662.37x = 25,005.87 × 7,897.30
4. Step 4: Simplify right side
   16,662.37x = 197,478,857.15
5. Step 5: Solve for x
   x = 197,478,857.15/16,662.37
6. Step 6: Final answer
   x = 11,851.79