Finding the Fourth Proportional to 54,339.98, 74,919 and 35,185.70

Step by Step Solution

1. Step 1: Write the proportion equation
   54,339.98 : 74,919 = 35,185.70 : x
2. Step 2: Convert to fraction form
   54,339.98/74,919 = 35,185.70/x
3. Step 3: Cross multiply
   54,339.98x = 74,919 × 35,185.70
4. Step 4: Simplify right side
   54,339.98x = 2,636,077,458.30
5. Step 5: Solve for x
   x = 2,636,077,458.30/54,339.98
6. Step 6: Final answer
   x = 48,510.83