Finding the Fourth Proportional to 8,892.22, 12,271.12 and 4,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,892.22 : 12,271.12 = 4,913.50 : x
2. Step 2: Convert to fraction form
   8,892.22/12,271.12 = 4,913.50/x
3. Step 3: Cross multiply
   8,892.22x = 12,271.12 × 4,913.50
4. Step 4: Simplify right side
   8,892.22x = 60,294,148.12
5. Step 5: Solve for x
   x = 60,294,148.12/8,892.22
6. Step 6: Final answer
   x = 6,780.55