Finding the Fourth Proportional to 10,089.92, 13,922.88 and 5,612.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,089.92 : 13,922.88 = 5,612.54 : x
2. Step 2: Convert to fraction form
   10,089.92/13,922.88 = 5,612.54/x
3. Step 3: Cross multiply
   10,089.92x = 13,922.88 × 5,612.54
4. Step 4: Simplify right side
   10,089.92x = 78,142,720.92
5. Step 5: Solve for x
   x = 78,142,720.92/10,089.92
6. Step 6: Final answer
   x = 7,744.63