Finding the Fourth Proportional to 12,223.91, 18,333.98 and 4,726.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,223.91 : 18,333.98 = 4,726.42 : x
2. Step 2: Convert to fraction form
   12,223.91/18,333.98 = 4,726.42/x
3. Step 3: Cross multiply
   12,223.91x = 18,333.98 × 4,726.42
4. Step 4: Simplify right side
   12,223.91x = 86,654,038.01
5. Step 5: Solve for x
   x = 86,654,038.01/12,223.91
6. Step 6: Final answer
   x = 7,088.90