Finding the Fourth Proportional to 12,818.64, 17,689.73 and 7,076.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,818.64 : 17,689.73 = 7,076.10 : x
2. Step 2: Convert to fraction form
   12,818.64/17,689.73 = 7,076.10/x
3. Step 3: Cross multiply
   12,818.64x = 17,689.73 × 7,076.10
4. Step 4: Simplify right side
   12,818.64x = 125,174,196.74
5. Step 5: Solve for x
   x = 125,174,196.74/12,818.64
6. Step 6: Final answer
   x = 9,765.01