Finding the Fourth Proportional to 7,118.32, 9,823.28 and 4,134.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,118.32 : 9,823.28 = 4,134.72 : x
2. Step 2: Convert to fraction form
   7,118.32/9,823.28 = 4,134.72/x
3. Step 3: Cross multiply
   7,118.32x = 9,823.28 × 4,134.72
4. Step 4: Simplify right side
   7,118.32x = 40,616,512.28
5. Step 5: Solve for x
   x = 40,616,512.28/7,118.32
6. Step 6: Final answer
   x = 5,705.91