Finding the Fourth Proportional to 10,449.63, 14,420.30 and 5,912.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,449.63 : 14,420.30 = 5,912.27 : x
2. Step 2: Convert to fraction form
   10,449.63/14,420.30 = 5,912.27/x
3. Step 3: Cross multiply
   10,449.63x = 14,420.30 × 5,912.27
4. Step 4: Simplify right side
   10,449.63x = 85,256,668.82
5. Step 5: Solve for x
   x = 85,256,668.82/10,449.63
6. Step 6: Final answer
   x = 8,158.82