Finding the Fourth Proportional to 8,870.92, 12,241.43 and 4,891.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870.92 : 12,241.43 = 4,891.93 : x
2. Step 2: Convert to fraction form
   8,870.92/12,241.43 = 4,891.93/x
3. Step 3: Cross multiply
   8,870.92x = 12,241.43 × 4,891.93
4. Step 4: Simplify right side
   8,870.92x = 59,884,181.94
5. Step 5: Solve for x
   x = 59,884,181.94/8,870.92
6. Step 6: Final answer
   x = 6,750.62