Finding the Fourth Proportional to 9,270.30, 12,792.52 and 5,077.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,270.30 : 12,792.52 = 5,077.74 : x
2. Step 2: Convert to fraction form
   9,270.30/12,792.52 = 5,077.74/x
3. Step 3: Cross multiply
   9,270.30x = 12,792.52 × 5,077.74
4. Step 4: Simplify right side
   9,270.30x = 64,957,090.50
5. Step 5: Solve for x
   x = 64,957,090.50/9,270.30
6. Step 6: Final answer
   x = 7,007.01