Finding the Fourth Proportional to 12,944, 17,862.72 and 7,056

Step by Step Solution

1. Step 1: Write the proportion equation
   12,944 : 17,862.72 = 7,056 : x
2. Step 2: Convert to fraction form
   12,944/17,862.72 = 7,056/x
3. Step 3: Cross multiply
   12,944x = 17,862.72 × 7,056
4. Step 4: Simplify right side
   12,944x = 126,039,352.32
5. Step 5: Solve for x
   x = 126,039,352.32/12,944
6. Step 6: Final answer
   x = 9,737.28