Finding the Fourth Proportional to 10,621.32, 14,657.94 and 5,905.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,621.32 : 14,657.94 = 5,905.50 : x
2. Step 2: Convert to fraction form
   10,621.32/14,657.94 = 5,905.50/x
3. Step 3: Cross multiply
   10,621.32x = 14,657.94 × 5,905.50
4. Step 4: Simplify right side
   10,621.32x = 86,562,464.67
5. Step 5: Solve for x
   x = 86,562,464.67/10,621.32
6. Step 6: Final answer
   x = 8,149.88