Finding the Fourth Proportional to 11,411.70, 17,118.74 and 3,513.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,411.70 : 17,118.74 = 3,513.89 : x
2. Step 2: Convert to fraction form
   11,411.70/17,118.74 = 3,513.89/x
3. Step 3: Cross multiply
   11,411.70x = 17,118.74 × 3,513.89
4. Step 4: Simplify right side
   11,411.70x = 60,153,444.95
5. Step 5: Solve for x
   x = 60,153,444.95/11,411.70
6. Step 6: Final answer
   x = 5,271.21