Finding the Fourth Proportional to 7,084.10, 10,618.34 and 2,921.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,084.10 : 10,618.34 = 2,921.82 : x
2. Step 2: Convert to fraction form
   7,084.10/10,618.34 = 2,921.82/x
3. Step 3: Cross multiply
   7,084.10x = 10,618.34 × 2,921.82
4. Step 4: Simplify right side
   7,084.10x = 31,024,863.57
5. Step 5: Solve for x
   x = 31,024,863.57/7,084.10
6. Step 6: Final answer
   x = 4,379.51