Finding the Fourth Proportional to 10,686.02, 14,747.57 and 5,906.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.02 : 14,747.57 = 5,906.39 : x
2. Step 2: Convert to fraction form
   10,686.02/14,747.57 = 5,906.39/x
3. Step 3: Cross multiply
   10,686.02x = 14,747.57 × 5,906.39
4. Step 4: Simplify right side
   10,686.02x = 87,104,796.70
5. Step 5: Solve for x
   x = 87,104,796.70/10,686.02
6. Step 6: Final answer
   x = 8,151.29