Finding the Fourth Proportional to 7,770.02, 10,722.54 and 4,233.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,770.02 : 10,722.54 = 4,233.22 : x
2. Step 2: Convert to fraction form
   7,770.02/10,722.54 = 4,233.22/x
3. Step 3: Cross multiply
   7,770.02x = 10,722.54 × 4,233.22
4. Step 4: Simplify right side
   7,770.02x = 45,390,870.78
5. Step 5: Solve for x
   x = 45,390,870.78/7,770.02
6. Step 6: Final answer
   x = 5,841.80