Finding the Fourth Proportional to 12,761.34, 19,142.04 and 3,997.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,761.34 : 19,142.04 = 3,997.02 : x
2. Step 2: Convert to fraction form
   12,761.34/19,142.04 = 3,997.02/x
3. Step 3: Cross multiply
   12,761.34x = 19,142.04 × 3,997.02
4. Step 4: Simplify right side
   12,761.34x = 76,511,116.72
5. Step 5: Solve for x
   x = 76,511,116.72/12,761.34
6. Step 6: Final answer
   x = 5,995.54