Finding the Fourth Proportional to 12,870.27, 17,761.41 and 7,204.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.27 : 17,761.41 = 7,204.95 : x
2. Step 2: Convert to fraction form
   12,870.27/17,761.41 = 7,204.95/x
3. Step 3: Cross multiply
   12,870.27x = 17,761.41 × 7,204.95
4. Step 4: Simplify right side
   12,870.27x = 127,970,070.98
5. Step 5: Solve for x
   x = 127,970,070.98/12,870.27
6. Step 6: Final answer
   x = 9,943.08