Finding the Fourth Proportional to 10,979.56, 16,472.04 and 3,188.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,979.56 : 16,472.04 = 3,188.44 : x
2. Step 2: Convert to fraction form
   10,979.56/16,472.04 = 3,188.44/x
3. Step 3: Cross multiply
   10,979.56x = 16,472.04 × 3,188.44
4. Step 4: Simplify right side
   10,979.56x = 52,520,111.22
5. Step 5: Solve for x
   x = 52,520,111.22/10,979.56
6. Step 6: Final answer
   x = 4,783.44