Finding the Fourth Proportional to 10,088.91, 13,922.25 and 5,612.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,088.91 : 13,922.25 = 5,612.31 : x
2. Step 2: Convert to fraction form
   10,088.91/13,922.25 = 5,612.31/x
3. Step 3: Cross multiply
   10,088.91x = 13,922.25 × 5,612.31
4. Step 4: Simplify right side
   10,088.91x = 78,135,982.90
5. Step 5: Solve for x
   x = 78,135,982.90/10,088.91
6. Step 6: Final answer
   x = 7,744.74