Finding the Fourth Proportional to 9,126.72, 12,594.83 and 5,147.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,126.72 : 12,594.83 = 5,147.60 : x
2. Step 2: Convert to fraction form
   9,126.72/12,594.83 = 5,147.60/x
3. Step 3: Cross multiply
   9,126.72x = 12,594.83 × 5,147.60
4. Step 4: Simplify right side
   9,126.72x = 64,833,058.20
5. Step 5: Solve for x
   x = 64,833,058.20/9,126.72
6. Step 6: Final answer
   x = 7,103.65