Finding the Fourth Proportional to 10,712.46, 16,141.82 and 8,807.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,712.46 : 16,141.82 = 8,807.34 : x
2. Step 2: Convert to fraction form
   10,712.46/16,141.82 = 8,807.34/x
3. Step 3: Cross multiply
   10,712.46x = 16,141.82 × 8,807.34
4. Step 4: Simplify right side
   10,712.46x = 142,166,496.96
5. Step 5: Solve for x
   x = 142,166,496.96/10,712.46
6. Step 6: Final answer
   x = 13,271.13