Finding the Fourth Proportional to 12,223.96, 18,339.59 and 7,026.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,223.96 : 18,339.59 = 7,026.19 : x
2. Step 2: Convert to fraction form
   12,223.96/18,339.59 = 7,026.19/x
3. Step 3: Cross multiply
   12,223.96x = 18,339.59 × 7,026.19
4. Step 4: Simplify right side
   12,223.96x = 128,857,415.58
5. Step 5: Solve for x
   x = 128,857,415.58/12,223.96
6. Step 6: Final answer
   x = 10,541.38