Finding the Fourth Proportional to 9,272.30, 12,795.68 and 5,080.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,272.30 : 12,795.68 = 5,080.55 : x
2. Step 2: Convert to fraction form
   9,272.30/12,795.68 = 5,080.55/x
3. Step 3: Cross multiply
   9,272.30x = 12,795.68 × 5,080.55
4. Step 4: Simplify right side
   9,272.30x = 65,009,040.75
5. Step 5: Solve for x
   x = 65,009,040.75/9,272.30
6. Step 6: Final answer
   x = 7,011.11