Finding the Fourth Proportional to 9,243.74, 12,753.32 and 5,209.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,243.74 : 12,753.32 = 5,209.94 : x
2. Step 2: Convert to fraction form
   9,243.74/12,753.32 = 5,209.94/x
3. Step 3: Cross multiply
   9,243.74x = 12,753.32 × 5,209.94
4. Step 4: Simplify right side
   9,243.74x = 66,444,037.83
5. Step 5: Solve for x
   x = 66,444,037.83/9,243.74
6. Step 6: Final answer
   x = 7,188.00