Finding the Fourth Proportional to 9,291.50, 12,822.24 and 5,312.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,291.50 : 12,822.24 = 5,312.69 : x
2. Step 2: Convert to fraction form
   9,291.50/12,822.24 = 5,312.69/x
3. Step 3: Cross multiply
   9,291.50x = 12,822.24 × 5,312.69
4. Step 4: Simplify right side
   9,291.50x = 68,120,586.23
5. Step 5: Solve for x
   x = 68,120,586.23/9,291.50
6. Step 6: Final answer
   x = 7,331.50