Finding the Fourth Proportional to 7,662.18, 10,577.84 and 5,157.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,662.18 : 10,577.84 = 5,157.45 : x
2. Step 2: Convert to fraction form
   7,662.18/10,577.84 = 5,157.45/x
3. Step 3: Cross multiply
   7,662.18x = 10,577.84 × 5,157.45
4. Step 4: Simplify right side
   7,662.18x = 54,554,680.91
5. Step 5: Solve for x
   x = 54,554,680.91/7,662.18
6. Step 6: Final answer
   x = 7,119.99