Finding the Fourth Proportional to 9,126.54, 12,594.42 and 5,147.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,126.54 : 12,594.42 = 5,147.55 : x
2. Step 2: Convert to fraction form
   9,126.54/12,594.42 = 5,147.55/x
3. Step 3: Cross multiply
   9,126.54x = 12,594.42 × 5,147.55
4. Step 4: Simplify right side
   9,126.54x = 64,830,406.67
5. Step 5: Solve for x
   x = 64,830,406.67/9,126.54
6. Step 6: Final answer
   x = 7,103.50