Finding the Fourth Proportional to 12,093.24, 18,128.88 and 4,300.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,093.24 : 18,128.88 = 4,300.22 : x
2. Step 2: Convert to fraction form
   12,093.24/18,128.88 = 4,300.22/x
3. Step 3: Cross multiply
   12,093.24x = 18,128.88 × 4,300.22
4. Step 4: Simplify right side
   12,093.24x = 77,958,172.35
5. Step 5: Solve for x
   x = 77,958,172.35/12,093.24
6. Step 6: Final answer
   x = 6,446.43