Finding the Fourth Proportional to 10,218.25, 14,099.37 and 5,680.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,218.25 : 14,099.37 = 5,680.43 : x
2. Step 2: Convert to fraction form
   10,218.25/14,099.37 = 5,680.43/x
3. Step 3: Cross multiply
   10,218.25x = 14,099.37 × 5,680.43
4. Step 4: Simplify right side
   10,218.25x = 80,090,445.40
5. Step 5: Solve for x
   x = 80,090,445.40/10,218.25
6. Step 6: Final answer
   x = 7,837.98