Finding the Fourth Proportional to 9,147.83, 12,623.85 and 5,168.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,147.83 : 12,623.85 = 5,168.70 : x
2. Step 2: Convert to fraction form
   9,147.83/12,623.85 = 5,168.70/x
3. Step 3: Cross multiply
   9,147.83x = 12,623.85 × 5,168.70
4. Step 4: Simplify right side
   9,147.83x = 65,248,893.50
5. Step 5: Solve for x
   x = 65,248,893.50/9,147.83
6. Step 6: Final answer
   x = 7,132.72