Finding the Fourth Proportional to 6,611.50, 9,124.23 and 3,817.90

Step by Step Solution

1. Step 1: Write the proportion equation
   6,611.50 : 9,124.23 = 3,817.90 : x
2. Step 2: Convert to fraction form
   6,611.50/9,124.23 = 3,817.90/x
3. Step 3: Cross multiply
   6,611.50x = 9,124.23 × 3,817.90
4. Step 4: Simplify right side
   6,611.50x = 34,835,397.72
5. Step 5: Solve for x
   x = 34,835,397.72/6,611.50
6. Step 6: Final answer
   x = 5,268.91