Finding the Fourth Proportional to 55,105.30, 82,578.18 and 37,990.62

Step by Step Solution

1. Step 1: Write the proportion equation
   55,105.30 : 82,578.18 = 37,990.62 : x
2. Step 2: Convert to fraction form
   55,105.30/82,578.18 = 37,990.62/x
3. Step 3: Cross multiply
   55,105.30x = 82,578.18 × 37,990.62
4. Step 4: Simplify right side
   55,105.30x = 3,137,196,573.19
5. Step 5: Solve for x
   x = 3,137,196,573.19/55,105.30
6. Step 6: Final answer
   x = 56,930.94