Finding the Fourth Proportional to 63,109.94, 94,665.74 and 20,990.03

Step by Step Solution

1. Step 1: Write the proportion equation
   63,109.94 : 94,665.74 = 20,990.03 : x
2. Step 2: Convert to fraction form
   63,109.94/94,665.74 = 20,990.03/x
3. Step 3: Cross multiply
   63,109.94x = 94,665.74 × 20,990.03
4. Step 4: Simplify right side
   63,109.94x = 1,987,036,144.29
5. Step 5: Solve for x
   x = 1,987,036,144.29/63,109.94
6. Step 6: Final answer
   x = 31,485.31