Finding the Fourth Proportional to 11,405.61, 17,108.55 and 3,614.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,405.61 : 17,108.55 = 3,614.49 : x
2. Step 2: Convert to fraction form
   11,405.61/17,108.55 = 3,614.49/x
3. Step 3: Cross multiply
   11,405.61x = 17,108.55 × 3,614.49
4. Step 4: Simplify right side
   11,405.61x = 61,838,682.89
5. Step 5: Solve for x
   x = 61,838,682.89/11,405.61
6. Step 6: Final answer
   x = 5,421.78