Finding the Fourth Proportional to 10,621.96, 14,656.58 and 5,906.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,621.96 : 14,656.58 = 5,906.12 : x
2. Step 2: Convert to fraction form
   10,621.96/14,656.58 = 5,906.12/x
3. Step 3: Cross multiply
   10,621.96x = 14,656.58 × 5,906.12
4. Step 4: Simplify right side
   10,621.96x = 86,563,520.27
5. Step 5: Solve for x
   x = 86,563,520.27/10,621.96
6. Step 6: Final answer
   x = 8,149.49