Finding the Fourth Proportional to 7,812.98, 10,770.69 and 5,570.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,812.98 : 10,770.69 = 5,570.96 : x
2. Step 2: Convert to fraction form
   7,812.98/10,770.69 = 5,570.96/x
3. Step 3: Cross multiply
   7,812.98x = 10,770.69 × 5,570.96
4. Step 4: Simplify right side
   7,812.98x = 60,003,083.16
5. Step 5: Solve for x
   x = 60,003,083.16/7,812.98
6. Step 6: Final answer
   x = 7,679.92