Finding the Fourth Proportional to 8,911.62, 12,298.05 and 4,932.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,911.62 : 12,298.05 = 4,932.72 : x
2. Step 2: Convert to fraction form
   8,911.62/12,298.05 = 4,932.72/x
3. Step 3: Cross multiply
   8,911.62x = 12,298.05 × 4,932.72
4. Step 4: Simplify right side
   8,911.62x = 60,662,837.20
5. Step 5: Solve for x
   x = 60,662,837.20/8,911.62
6. Step 6: Final answer
   x = 6,807.16