Finding the Fourth Proportional to 9,050.34, 12,489.83 and 5,275.95

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.34 : 12,489.83 = 5,275.95 : x
2. Step 2: Convert to fraction form
   9,050.34/12,489.83 = 5,275.95/x
3. Step 3: Cross multiply
   9,050.34x = 12,489.83 × 5,275.95
4. Step 4: Simplify right side
   9,050.34x = 65,895,718.59
5. Step 5: Solve for x
   x = 65,895,718.59/9,050.34
6. Step 6: Final answer
   x = 7,281.02