Finding the Fourth Proportional to 9,146.78, 12,622.61 and 4,955.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.78 : 12,622.61 = 4,955.03 : x
2. Step 2: Convert to fraction form
   9,146.78/12,622.61 = 4,955.03/x
3. Step 3: Cross multiply
   9,146.78x = 12,622.61 × 4,955.03
4. Step 4: Simplify right side
   9,146.78x = 62,545,411.23
5. Step 5: Solve for x
   x = 62,545,411.23/9,146.78
6. Step 6: Final answer
   x = 6,837.97