Finding the Fourth Proportional to 37,294.72, 55,930 and 12,328.96

Step by Step Solution

1. Step 1: Write the proportion equation
   37,294.72 : 55,930 = 12,328.96 : x
2. Step 2: Convert to fraction form
   37,294.72/55,930 = 12,328.96/x
3. Step 3: Cross multiply
   37,294.72x = 55,930 × 12,328.96
4. Step 4: Simplify right side
   37,294.72x = 689,558,732.80
5. Step 5: Solve for x
   x = 689,558,732.80/37,294.72
6. Step 6: Final answer
   x = 18,489.45