Finding the Fourth Proportional to 10,345.16, 14,276.20 and 5,629.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,345.16 : 14,276.20 = 5,629.44 : x
2. Step 2: Convert to fraction form
   10,345.16/14,276.20 = 5,629.44/x
3. Step 3: Cross multiply
   10,345.16x = 14,276.20 × 5,629.44
4. Step 4: Simplify right side
   10,345.16x = 80,367,011.33
5. Step 5: Solve for x
   x = 80,367,011.33/10,345.16
6. Step 6: Final answer
   x = 7,768.56