Finding the Fourth Proportional to 10,976.58, 16,470.27 and 5,434.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,976.58 : 16,470.27 = 5,434.56 : x
2. Step 2: Convert to fraction form
   10,976.58/16,470.27 = 5,434.56/x
3. Step 3: Cross multiply
   10,976.58x = 16,470.27 × 5,434.56
4. Step 4: Simplify right side
   10,976.58x = 89,508,670.53
5. Step 5: Solve for x
   x = 89,508,670.53/10,976.58
6. Step 6: Final answer
   x = 8,154.51