Finding the Fourth Proportional to 11,801.98, 17,698.79 and 3,903.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,801.98 : 17,698.79 = 3,903.06 : x
2. Step 2: Convert to fraction form
   11,801.98/17,698.79 = 3,903.06/x
3. Step 3: Cross multiply
   11,801.98x = 17,698.79 × 3,903.06
4. Step 4: Simplify right side
   11,801.98x = 69,079,439.30
5. Step 5: Solve for x
   x = 69,079,439.30/11,801.98
6. Step 6: Final answer
   x = 5,853.21