Finding the Fourth Proportional to 9,146.02, 12,621.39 and 5,167.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.02 : 12,621.39 = 5,167.09 : x
2. Step 2: Convert to fraction form
   9,146.02/12,621.39 = 5,167.09/x
3. Step 3: Cross multiply
   9,146.02x = 12,621.39 × 5,167.09
4. Step 4: Simplify right side
   9,146.02x = 65,215,858.06
5. Step 5: Solve for x
   x = 65,215,858.06/9,146.02
6. Step 6: Final answer
   x = 7,130.52