Finding the Fourth Proportional to 10,217.40, 14,100.54 and 5,680.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,217.40 : 14,100.54 = 5,680.59 : x
2. Step 2: Convert to fraction form
   10,217.40/14,100.54 = 5,680.59/x
3. Step 3: Cross multiply
   10,217.40x = 14,100.54 × 5,680.59
4. Step 4: Simplify right side
   10,217.40x = 80,099,386.52
5. Step 5: Solve for x
   x = 80,099,386.52/10,217.40
6. Step 6: Final answer
   x = 7,839.51