Finding the Fourth Proportional to 8,849.85, 12,212.35 and 4,870.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.85 : 12,212.35 = 4,870.32 : x
2. Step 2: Convert to fraction form
   8,849.85/12,212.35 = 4,870.32/x
3. Step 3: Cross multiply
   8,849.85x = 12,212.35 × 4,870.32
4. Step 4: Simplify right side
   8,849.85x = 59,478,052.45
5. Step 5: Solve for x
   x = 59,478,052.45/8,849.85
6. Step 6: Final answer
   x = 6,720.80