Finding the Fourth Proportional to 7,077.50, 10,615.83 and 2,147.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,077.50 : 10,615.83 = 2,147.18 : x
2. Step 2: Convert to fraction form
   7,077.50/10,615.83 = 2,147.18/x
3. Step 3: Cross multiply
   7,077.50x = 10,615.83 × 2,147.18
4. Step 4: Simplify right side
   7,077.50x = 22,794,097.86
5. Step 5: Solve for x
   x = 22,794,097.86/7,077.50
6. Step 6: Final answer
   x = 3,220.64