Finding the Fourth Proportional to 12,167.81, 18,253.58 and 5,147.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,167.81 : 18,253.58 = 5,147.83 : x
2. Step 2: Convert to fraction form
   12,167.81/18,253.58 = 5,147.83/x
3. Step 3: Cross multiply
   12,167.81x = 18,253.58 × 5,147.83
4. Step 4: Simplify right side
   12,167.81x = 93,966,326.73
5. Step 5: Solve for x
   x = 93,966,326.73/12,167.81
6. Step 6: Final answer
   x = 7,722.53