Finding the Fourth Proportional to 9,300.87, 12,834.31 and 5,267.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.87 : 12,834.31 = 5,267.88 : x
2. Step 2: Convert to fraction form
   9,300.87/12,834.31 = 5,267.88/x
3. Step 3: Cross multiply
   9,300.87x = 12,834.31 × 5,267.88
4. Step 4: Simplify right side
   9,300.87x = 67,609,604.96
5. Step 5: Solve for x
   x = 67,609,604.96/9,300.87
6. Step 6: Final answer
   x = 7,269.17