Finding the Fourth Proportional to 9,211.50, 12,711.96 and 5,019.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,211.50 : 12,711.96 = 5,019.84 : x
2. Step 2: Convert to fraction form
   9,211.50/12,711.96 = 5,019.84/x
3. Step 3: Cross multiply
   9,211.50x = 12,711.96 × 5,019.84
4. Step 4: Simplify right side
   9,211.50x = 63,812,005.29
5. Step 5: Solve for x
   x = 63,812,005.29/9,211.50
6. Step 6: Final answer
   x = 6,927.43