Finding the Fourth Proportional to 9,200.77, 12,697.37 and 5,168.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,200.77 : 12,697.37 = 5,168.31 : x
2. Step 2: Convert to fraction form
   9,200.77/12,697.37 = 5,168.31/x
3. Step 3: Cross multiply
   9,200.77x = 12,697.37 × 5,168.31
4. Step 4: Simplify right side
   9,200.77x = 65,623,855.02
5. Step 5: Solve for x
   x = 65,623,855.02/9,200.77
6. Step 6: Final answer
   x = 7,132.43