Finding the Fourth Proportional to 10,089.09, 13,922.16 and 5,612.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,089.09 : 13,922.16 = 5,612.12 : x
2. Step 2: Convert to fraction form
   10,089.09/13,922.16 = 5,612.12/x
3. Step 3: Cross multiply
   10,089.09x = 13,922.16 × 5,612.12
4. Step 4: Simplify right side
   10,089.09x = 78,132,794.13
5. Step 5: Solve for x
   x = 78,132,794.13/10,089.09
6. Step 6: Final answer
   x = 7,744.29