Finding the Fourth Proportional to 7,070.42, 9,766.37 and 5,381.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,070.42 : 9,766.37 = 5,381.57 : x
2. Step 2: Convert to fraction form
   7,070.42/9,766.37 = 5,381.57/x
3. Step 3: Cross multiply
   7,070.42x = 9,766.37 × 5,381.57
4. Step 4: Simplify right side
   7,070.42x = 52,558,403.80
5. Step 5: Solve for x
   x = 52,558,403.80/7,070.42
6. Step 6: Final answer
   x = 7,433.56