Finding the Fourth Proportional to 10,345.30, 14,276.58 and 5,629.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,345.30 : 14,276.58 = 5,629.68 : x
2. Step 2: Convert to fraction form
   10,345.30/14,276.58 = 5,629.68/x
3. Step 3: Cross multiply
   10,345.30x = 14,276.58 × 5,629.68
4. Step 4: Simplify right side
   10,345.30x = 80,372,576.89
5. Step 5: Solve for x
   x = 80,372,576.89/10,345.30
6. Step 6: Final answer
   x = 7,768.99