Finding the Fourth Proportional to 63,072.60, 87,036.89 and 39,198.75

Step by Step Solution

1. Step 1: Write the proportion equation
   63,072.60 : 87,036.89 = 39,198.75 : x
2. Step 2: Convert to fraction form
   63,072.60/87,036.89 = 39,198.75/x
3. Step 3: Cross multiply
   63,072.60x = 87,036.89 × 39,198.75
4. Step 4: Simplify right side
   63,072.60x = 3,411,737,095.89
5. Step 5: Solve for x
   x = 3,411,737,095.89/63,072.60
6. Step 6: Final answer
   x = 54,092.22