Finding the Fourth Proportional to 9,146.84, 12,622.57 and 5,168.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.84 : 12,622.57 = 5,168.72 : x
2. Step 2: Convert to fraction form
   9,146.84/12,622.57 = 5,168.72/x
3. Step 3: Cross multiply
   9,146.84x = 12,622.57 × 5,168.72
4. Step 4: Simplify right side
   9,146.84x = 65,242,548.65
5. Step 5: Solve for x
   x = 65,242,548.65/9,146.84
6. Step 6: Final answer
   x = 7,132.80