Finding the Fourth Proportional to 14,856.84, 20,502.32 and 8,142.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,856.84 : 20,502.32 = 8,142.89 : x
2. Step 2: Convert to fraction form
   14,856.84/20,502.32 = 8,142.89/x
3. Step 3: Cross multiply
   14,856.84x = 20,502.32 × 8,142.89
4. Step 4: Simplify right side
   14,856.84x = 166,947,993.28
5. Step 5: Solve for x
   x = 166,947,993.28/14,856.84
6. Step 6: Final answer
   x = 11,237.11