Finding the Fourth Proportional to 11,761.84, 17,642.81 and 3,976.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,761.84 : 17,642.81 = 3,976.12 : x
2. Step 2: Convert to fraction form
   11,761.84/17,642.81 = 3,976.12/x
3. Step 3: Cross multiply
   11,761.84x = 17,642.81 × 3,976.12
4. Step 4: Simplify right side
   11,761.84x = 70,149,865.71
5. Step 5: Solve for x
   x = 70,149,865.71/11,761.84
6. Step 6: Final answer
   x = 5,964.19