Finding the Fourth Proportional to 9,147.56, 12,623.59 and 4,955.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,147.56 : 12,623.59 = 4,955.81 : x
2. Step 2: Convert to fraction form
   9,147.56/12,623.59 = 4,955.81/x
3. Step 3: Cross multiply
   9,147.56x = 12,623.59 × 4,955.81
4. Step 4: Simplify right side
   9,147.56x = 62,560,113.56
5. Step 5: Solve for x
   x = 62,560,113.56/9,147.56
6. Step 6: Final answer
   x = 6,838.99