Finding the Fourth Proportional to 63,072.72, 87,039 and 34,778.46

Step by Step Solution

1. Step 1: Write the proportion equation
   63,072.72 : 87,039 = 34,778.46 : x
2. Step 2: Convert to fraction form
   63,072.72/87,039 = 34,778.46/x
3. Step 3: Cross multiply
   63,072.72x = 87,039 × 34,778.46
4. Step 4: Simplify right side
   63,072.72x = 3,027,082,379.94
5. Step 5: Solve for x
   x = 3,027,082,379.94/63,072.72
6. Step 6: Final answer
   x = 47,993.53