Finding the Fourth Proportional to 63,020.69, 86,970.41 and 34,728.20

Step by Step Solution

1. Step 1: Write the proportion equation
   63,020.69 : 86,970.41 = 34,728.20 : x
2. Step 2: Convert to fraction form
   63,020.69/86,970.41 = 34,728.20/x
3. Step 3: Cross multiply
   63,020.69x = 86,970.41 × 34,728.20
4. Step 4: Simplify right side
   63,020.69x = 3,020,325,792.56
5. Step 5: Solve for x
   x = 3,020,325,792.56/63,020.69
6. Step 6: Final answer
   x = 47,925.94