Finding the Fourth Proportional to 63,419.40, 95,131.42 and 21,300.87

Step by Step Solution

1. Step 1: Write the proportion equation
   63,419.40 : 95,131.42 = 21,300.87 : x
2. Step 2: Convert to fraction form
   63,419.40/95,131.42 = 21,300.87/x
3. Step 3: Cross multiply
   63,419.40x = 95,131.42 × 21,300.87
4. Step 4: Simplify right side
   63,419.40x = 2,026,382,313.83
5. Step 5: Solve for x
   x = 2,026,382,313.83/63,419.40
6. Step 6: Final answer
   x = 31,952.09