Finding the Fourth Proportional to 8,892.29, 12,270.76 and 4,913.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,892.29 : 12,270.76 = 4,913.37 : x
2. Step 2: Convert to fraction form
   8,892.29/12,270.76 = 4,913.37/x
3. Step 3: Cross multiply
   8,892.29x = 12,270.76 × 4,913.37
4. Step 4: Simplify right side
   8,892.29x = 60,290,771.78
5. Step 5: Solve for x
   x = 60,290,771.78/8,892.29
6. Step 6: Final answer
   x = 6,780.12