Finding the Fourth Proportional to 9,262.25, 12,779.38 and 5,281.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,262.25 : 12,779.38 = 5,281.91 : x
2. Step 2: Convert to fraction form
   9,262.25/12,779.38 = 5,281.91/x
3. Step 3: Cross multiply
   9,262.25x = 12,779.38 × 5,281.91
4. Step 4: Simplify right side
   9,262.25x = 67,499,535.02
5. Step 5: Solve for x
   x = 67,499,535.02/9,262.25
6. Step 6: Final answer
   x = 7,287.60