Finding the Fourth Proportional to 37,217.34, 55,833.71 and 12,258.91

Step by Step Solution

1. Step 1: Write the proportion equation
   37,217.34 : 55,833.71 = 12,258.91 : x
2. Step 2: Convert to fraction form
   37,217.34/55,833.71 = 12,258.91/x
3. Step 3: Cross multiply
   37,217.34x = 55,833.71 × 12,258.91
4. Step 4: Simplify right side
   37,217.34x = 684,460,434.35
5. Step 5: Solve for x
   x = 684,460,434.35/37,217.34
6. Step 6: Final answer
   x = 18,390.90