Finding the Fourth Proportional to 63,021, 86,970.81 and 34,728.51

Step by Step Solution

1. Step 1: Write the proportion equation
   63,021 : 86,970.81 = 34,728.51 : x
2. Step 2: Convert to fraction form
   63,021/86,970.81 = 34,728.51/x
3. Step 3: Cross multiply
   63,021x = 86,970.81 × 34,728.51
4. Step 4: Simplify right side
   63,021x = 3,020,366,644.79
5. Step 5: Solve for x
   x = 3,020,366,644.79/63,021
6. Step 6: Final answer
   x = 47,926.35