Finding the Fourth Proportional to 12,870.90, 17,760.96 and 7,204.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.90 : 17,760.96 = 7,204.68 : x
2. Step 2: Convert to fraction form
   12,870.90/17,760.96 = 7,204.68/x
3. Step 3: Cross multiply
   12,870.90x = 17,760.96 × 7,204.68
4. Step 4: Simplify right side
   12,870.90x = 127,962,033.29
5. Step 5: Solve for x
   x = 127,962,033.29/12,870.90
6. Step 6: Final answer
   x = 9,941.96