Finding the Fourth Proportional to 9,876.02, 13,629.15 and 5,399.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,876.02 : 13,629.15 = 5,399.96 : x
2. Step 2: Convert to fraction form
   9,876.02/13,629.15 = 5,399.96/x
3. Step 3: Cross multiply
   9,876.02x = 13,629.15 × 5,399.96
4. Step 4: Simplify right side
   9,876.02x = 73,596,864.83
5. Step 5: Solve for x
   x = 73,596,864.83/9,876.02
6. Step 6: Final answer
   x = 7,452.08