Finding the Fourth Proportional to 11,667.88, 17,499.42 and 5,090.44

Step by Step Solution

1. Step 1: Write the proportion equation
   11,667.88 : 17,499.42 = 5,090.44 : x
2. Step 2: Convert to fraction form
   11,667.88/17,499.42 = 5,090.44/x
3. Step 3: Cross multiply
   11,667.88x = 17,499.42 × 5,090.44
4. Step 4: Simplify right side
   11,667.88x = 89,079,747.54
5. Step 5: Solve for x
   x = 89,079,747.54/11,667.88
6. Step 6: Final answer
   x = 7,634.61