Finding the Fourth Proportional to 7,100.72, 9,789.36 and 5,772.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,100.72 : 9,789.36 = 5,772.32 : x
2. Step 2: Convert to fraction form
   7,100.72/9,789.36 = 5,772.32/x
3. Step 3: Cross multiply
   7,100.72x = 9,789.36 × 5,772.32
4. Step 4: Simplify right side
   7,100.72x = 56,507,318.52
5. Step 5: Solve for x
   x = 56,507,318.52/7,100.72
6. Step 6: Final answer
   x = 7,957.97