Finding the Fourth Proportional to 9,279.96, 12,796.02 and 7,150.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,279.96 : 12,796.02 = 7,150.74 : x
2. Step 2: Convert to fraction form
   9,279.96/12,796.02 = 7,150.74/x
3. Step 3: Cross multiply
   9,279.96x = 12,796.02 × 7,150.74
4. Step 4: Simplify right side
   9,279.96x = 91,501,012.05
5. Step 5: Solve for x
   x = 91,501,012.05/9,279.96
6. Step 6: Final answer
   x = 9,860.07