Finding the Fourth Proportional to 10,932.34, 15,085.24 and 6,216.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,932.34 : 15,085.24 = 6,216.72 : x
2. Step 2: Convert to fraction form
   10,932.34/15,085.24 = 6,216.72/x
3. Step 3: Cross multiply
   10,932.34x = 15,085.24 × 6,216.72
4. Step 4: Simplify right side
   10,932.34x = 93,780,606.70
5. Step 5: Solve for x
   x = 93,780,606.70/10,932.34
6. Step 6: Final answer
   x = 8,578.28