Finding the Fourth Proportional to 11,872.76, 17,796.72 and 3,973.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,872.76 : 17,796.72 = 3,973.28 : x
2. Step 2: Convert to fraction form
   11,872.76/17,796.72 = 3,973.28/x
3. Step 3: Cross multiply
   11,872.76x = 17,796.72 × 3,973.28
4. Step 4: Simplify right side
   11,872.76x = 70,711,351.64
5. Step 5: Solve for x
   x = 70,711,351.64/11,872.76
6. Step 6: Final answer
   x = 5,955.76