Finding the Fourth Proportional to 9,270.74, 12,796.74 and 5,636.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,270.74 : 12,796.74 = 5,636.76 : x
2. Step 2: Convert to fraction form
   9,270.74/12,796.74 = 5,636.76/x
3. Step 3: Cross multiply
   9,270.74x = 12,796.74 × 5,636.76
4. Step 4: Simplify right side
   9,270.74x = 72,132,152.16
5. Step 5: Solve for x
   x = 72,132,152.16/9,270.74
6. Step 6: Final answer
   x = 7,780.63