Finding the Fourth Proportional to 63,147.97, 94,655.31 and 21,016.72

Step by Step Solution

1. Step 1: Write the proportion equation
   63,147.97 : 94,655.31 = 21,016.72 : x
2. Step 2: Convert to fraction form
   63,147.97/94,655.31 = 21,016.72/x
3. Step 3: Cross multiply
   63,147.97x = 94,655.31 × 21,016.72
4. Step 4: Simplify right side
   63,147.97x = 1,989,344,146.78
5. Step 5: Solve for x
   x = 1,989,344,146.78/63,147.97
6. Step 6: Final answer
   x = 31,502.90