Finding the Fourth Proportional to 11,667.61, 17,504.10 and 3,661.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,667.61 : 17,504.10 = 3,661.94 : x
2. Step 2: Convert to fraction form
   11,667.61/17,504.10 = 3,661.94/x
3. Step 3: Cross multiply
   11,667.61x = 17,504.10 × 3,661.94
4. Step 4: Simplify right side
   11,667.61x = 64,098,963.95
5. Step 5: Solve for x
   x = 64,098,963.95/11,667.61
6. Step 6: Final answer
   x = 5,493.75