Finding the Fourth Proportional to 9,147.25, 12,623.30 and 4,955.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,147.25 : 12,623.30 = 4,955.59 : x
2. Step 2: Convert to fraction form
   9,147.25/12,623.30 = 4,955.59/x
3. Step 3: Cross multiply
   9,147.25x = 12,623.30 × 4,955.59
4. Step 4: Simplify right side
   9,147.25x = 62,555,899.25
5. Step 5: Solve for x
   x = 62,555,899.25/9,147.25
6. Step 6: Final answer
   x = 6,838.77