Finding the Fourth Proportional to 10,088.60, 13,921.94 and 5,612.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,088.60 : 13,921.94 = 5,612.18 : x
2. Step 2: Convert to fraction form
   10,088.60/13,921.94 = 5,612.18/x
3. Step 3: Cross multiply
   10,088.60x = 13,921.94 × 5,612.18
4. Step 4: Simplify right side
   10,088.60x = 78,132,433.23
5. Step 5: Solve for x
   x = 78,132,433.23/10,088.60
6. Step 6: Final answer
   x = 7,744.63