Finding the Fourth Proportional to 10,947, 15,106.88 and 5,979

Step by Step Solution

1. Step 1: Write the proportion equation
   10,947 : 15,106.88 = 5,979 : x
2. Step 2: Convert to fraction form
   10,947/15,106.88 = 5,979/x
3. Step 3: Cross multiply
   10,947x = 15,106.88 × 5,979
4. Step 4: Simplify right side
   10,947x = 90,324,035.52
5. Step 5: Solve for x
   x = 90,324,035.52/10,947
6. Step 6: Final answer
   x = 8,251.03