Finding the Fourth Proportional to 10,856.64, 16,273.01 and 7,103.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.64 : 16,273.01 = 7,103.91 : x
2. Step 2: Convert to fraction form
   10,856.64/16,273.01 = 7,103.91/x
3. Step 3: Cross multiply
   10,856.64x = 16,273.01 × 7,103.91
4. Step 4: Simplify right side
   10,856.64x = 115,602,016.23
5. Step 5: Solve for x
   x = 115,602,016.23/10,856.64
6. Step 6: Final answer
   x = 10,648.05