Finding the Fourth Proportional to 10,088.37, 13,920.45 and 5,612.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,088.37 : 13,920.45 = 5,612.18 : x
2. Step 2: Convert to fraction form
   10,088.37/13,920.45 = 5,612.18/x
3. Step 3: Cross multiply
   10,088.37x = 13,920.45 × 5,612.18
4. Step 4: Simplify right side
   10,088.37x = 78,124,001.48
5. Step 5: Solve for x
   x = 78,124,001.48/10,088.37
6. Step 6: Final answer
   x = 7,743.97