Finding the Fourth Proportional to 12,847.64, 17,730.56 and 7,182.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,847.64 : 17,730.56 = 7,182.41 : x
2. Step 2: Convert to fraction form
   12,847.64/17,730.56 = 7,182.41/x
3. Step 3: Cross multiply
   12,847.64x = 17,730.56 × 7,182.41
4. Step 4: Simplify right side
   12,847.64x = 127,348,053.82
5. Step 5: Solve for x
   x = 127,348,053.82/12,847.64
6. Step 6: Final answer
   x = 9,912.18