Finding the Fourth Proportional to 11,926.88, 17,890.43 and 3,606.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,926.88 : 17,890.43 = 3,606.96 : x
2. Step 2: Convert to fraction form
   11,926.88/17,890.43 = 3,606.96/x
3. Step 3: Cross multiply
   11,926.88x = 17,890.43 × 3,606.96
4. Step 4: Simplify right side
   11,926.88x = 64,530,047.36
5. Step 5: Solve for x
   x = 64,530,047.36/11,926.88
6. Step 6: Final answer
   x = 5,410.47