Finding the Fourth Proportional to 37,243.82, 55,853.88 and 12,279.21

Step by Step Solution

1. Step 1: Write the proportion equation
   37,243.82 : 55,853.88 = 12,279.21 : x
2. Step 2: Convert to fraction form
   37,243.82/55,853.88 = 12,279.21/x
3. Step 3: Cross multiply
   37,243.82x = 55,853.88 × 12,279.21
4. Step 4: Simplify right side
   37,243.82x = 685,841,521.83
5. Step 5: Solve for x
   x = 685,841,521.83/37,243.82
6. Step 6: Final answer
   x = 18,414.91