Finding the Fourth Proportional to 8,913.06, 12,299.31 and 4,934.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,913.06 : 12,299.31 = 4,934.34 : x
2. Step 2: Convert to fraction form
   8,913.06/12,299.31 = 4,934.34/x
3. Step 3: Cross multiply
   8,913.06x = 12,299.31 × 4,934.34
4. Step 4: Simplify right side
   8,913.06x = 60,688,977.31
5. Step 5: Solve for x
   x = 60,688,977.31/8,913.06
6. Step 6: Final answer
   x = 6,808.99