Finding the Fourth Proportional to 13,901.83, 19,176.95 and 8,857.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,901.83 : 19,176.95 = 8,857.15 : x
2. Step 2: Convert to fraction form
   13,901.83/19,176.95 = 8,857.15/x
3. Step 3: Cross multiply
   13,901.83x = 19,176.95 × 8,857.15
4. Step 4: Simplify right side
   13,901.83x = 169,853,096.89
5. Step 5: Solve for x
   x = 169,853,096.89/13,901.83
6. Step 6: Final answer
   x = 12,218.04