Finding the Fourth Proportional to 10,396.32, 14,347.23 and 5,680.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,396.32 : 14,347.23 = 5,680.89 : x
2. Step 2: Convert to fraction form
   10,396.32/14,347.23 = 5,680.89/x
3. Step 3: Cross multiply
   10,396.32x = 14,347.23 × 5,680.89
4. Step 4: Simplify right side
   10,396.32x = 81,505,035.43
5. Step 5: Solve for x
   x = 81,505,035.43/10,396.32
6. Step 6: Final answer
   x = 7,839.80