Finding the Fourth Proportional to 9,146.02, 12,620.78 and 5,167.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.02 : 12,620.78 = 5,167.48 : x
2. Step 2: Convert to fraction form
   9,146.02/12,620.78 = 5,167.48/x
3. Step 3: Cross multiply
   9,146.02x = 12,620.78 × 5,167.48
4. Step 4: Simplify right side
   9,146.02x = 65,217,628.23
5. Step 5: Solve for x
   x = 65,217,628.23/9,146.02
6. Step 6: Final answer
   x = 7,130.71