Finding the Fourth Proportional to 11,213, 16,817.34 and 3,817.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,213 : 16,817.34 = 3,817.40 : x
2. Step 2: Convert to fraction form
   11,213/16,817.34 = 3,817.40/x
3. Step 3: Cross multiply
   11,213x = 16,817.34 × 3,817.40
4. Step 4: Simplify right side
   11,213x = 64,198,513.72
5. Step 5: Solve for x
   x = 64,198,513.72/11,213
6. Step 6: Final answer
   x = 5,725.36