Finding the Fourth Proportional to 12,741.54, 17,583.42 and 7,152.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,741.54 : 17,583.42 = 7,152.54 : x
2. Step 2: Convert to fraction form
   12,741.54/17,583.42 = 7,152.54/x
3. Step 3: Cross multiply
   12,741.54x = 17,583.42 × 7,152.54
4. Step 4: Simplify right side
   12,741.54x = 125,766,114.89
5. Step 5: Solve for x
   x = 125,766,114.89/12,741.54
6. Step 6: Final answer
   x = 9,870.56