Finding the Fourth Proportional to 10,396.31, 14,346.89 and 5,920.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,396.31 : 14,346.89 = 5,920.07 : x
2. Step 2: Convert to fraction form
   10,396.31/14,346.89 = 5,920.07/x
3. Step 3: Cross multiply
   10,396.31x = 14,346.89 × 5,920.07
4. Step 4: Simplify right side
   10,396.31x = 84,934,547.25
5. Step 5: Solve for x
   x = 84,934,547.25/10,396.31
6. Step 6: Final answer
   x = 8,169.68