Finding the Fourth Proportional to 10,089.37, 13,921.83 and 5,613.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,089.37 : 13,921.83 = 5,613.18 : x
2. Step 2: Convert to fraction form
   10,089.37/13,921.83 = 5,613.18/x
3. Step 3: Cross multiply
   10,089.37x = 13,921.83 × 5,613.18
4. Step 4: Simplify right side
   10,089.37x = 78,145,737.72
5. Step 5: Solve for x
   x = 78,145,737.72/10,089.37
6. Step 6: Final answer
   x = 7,745.35