Finding the Fourth Proportional to 12,243.77, 18,359.54 and 5,664.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,243.77 : 18,359.54 = 5,664.32 : x
2. Step 2: Convert to fraction form
   12,243.77/18,359.54 = 5,664.32/x
3. Step 3: Cross multiply
   12,243.77x = 18,359.54 × 5,664.32
4. Step 4: Simplify right side
   12,243.77x = 103,994,314.86
5. Step 5: Solve for x
   x = 103,994,314.86/12,243.77
6. Step 6: Final answer
   x = 8,493.65