Finding the Fourth Proportional to 8,870.46, 12,240.82 and 5,091

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870.46 : 12,240.82 = 5,091 : x
2. Step 2: Convert to fraction form
   8,870.46/12,240.82 = 5,091/x
3. Step 3: Cross multiply
   8,870.46x = 12,240.82 × 5,091
4. Step 4: Simplify right side
   8,870.46x = 62,318,014.62
5. Step 5: Solve for x
   x = 62,318,014.62/8,870.46
6. Step 6: Final answer
   x = 7,025.34