Finding the Fourth Proportional to 9,304.55, 12,840.14 and 5,112.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,304.55 : 12,840.14 = 5,112.71 : x
2. Step 2: Convert to fraction form
   9,304.55/12,840.14 = 5,112.71/x
3. Step 3: Cross multiply
   9,304.55x = 12,840.14 × 5,112.71
4. Step 4: Simplify right side
   9,304.55x = 65,647,886.62
5. Step 5: Solve for x
   x = 65,647,886.62/9,304.55
6. Step 6: Final answer
   x = 7,055.46