Finding the Fourth Proportional to 9,304.50, 12,840.30 and 5,112.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,304.50 : 12,840.30 = 5,112.84 : x
2. Step 2: Convert to fraction form
   9,304.50/12,840.30 = 5,112.84/x
3. Step 3: Cross multiply
   9,304.50x = 12,840.30 × 5,112.84
4. Step 4: Simplify right side
   9,304.50x = 65,650,399.45
5. Step 5: Solve for x
   x = 65,650,399.45/9,304.50
6. Step 6: Final answer
   x = 7,055.77