Finding the Fourth Proportional to 12,147.55, 16,763.23 and 7,431.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,147.55 : 16,763.23 = 7,431.83 : x
2. Step 2: Convert to fraction form
   12,147.55/16,763.23 = 7,431.83/x
3. Step 3: Cross multiply
   12,147.55x = 16,763.23 × 7,431.83
4. Step 4: Simplify right side
   12,147.55x = 124,581,537.34
5. Step 5: Solve for x
   x = 124,581,537.34/12,147.55
6. Step 6: Final answer
   x = 10,255.69