Finding the Fourth Proportional to 9,278.04, 12,803.94 and 5,086.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,278.04 : 12,803.94 = 5,086.52 : x
2. Step 2: Convert to fraction form
   9,278.04/12,803.94 = 5,086.52/x
3. Step 3: Cross multiply
   9,278.04x = 12,803.94 × 5,086.52
4. Step 4: Simplify right side
   9,278.04x = 65,127,496.89
5. Step 5: Solve for x
   x = 65,127,496.89/9,278.04
6. Step 6: Final answer
   x = 7,019.53