Finding the Fourth Proportional to 12,736.41, 19,106.52 and 3,972

Step by Step Solution

1. Step 1: Write the proportion equation
   12,736.41 : 19,106.52 = 3,972 : x
2. Step 2: Convert to fraction form
   12,736.41/19,106.52 = 3,972/x
3. Step 3: Cross multiply
   12,736.41x = 19,106.52 × 3,972
4. Step 4: Simplify right side
   12,736.41x = 75,891,097.44
5. Step 5: Solve for x
   x = 75,891,097.44/12,736.41
6. Step 6: Final answer
   x = 5,958.59