Finding the Fourth Proportional to 63,185.94, 94,712.31 and 21,054.78

Step by Step Solution

1. Step 1: Write the proportion equation
   63,185.94 : 94,712.31 = 21,054.78 : x
2. Step 2: Convert to fraction form
   63,185.94/94,712.31 = 21,054.78/x
3. Step 3: Cross multiply
   63,185.94x = 94,712.31 × 21,054.78
4. Step 4: Simplify right side
   63,185.94x = 1,994,146,850.34
5. Step 5: Solve for x
   x = 1,994,146,850.34/63,185.94
6. Step 6: Final answer
   x = 31,559.98