Finding the Fourth Proportional to 12,735.72, 19,104.03 and 3,971.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,735.72 : 19,104.03 = 3,971.32 : x
2. Step 2: Convert to fraction form
   12,735.72/19,104.03 = 3,971.32/x
3. Step 3: Cross multiply
   12,735.72x = 19,104.03 × 3,971.32
4. Step 4: Simplify right side
   12,735.72x = 75,868,216.42
5. Step 5: Solve for x
   x = 75,868,216.42/12,735.72
6. Step 6: Final answer
   x = 5,957.12