Finding the Fourth Proportional to 105,575.82, 158,143.38 and 63,321.90

Step by Step Solution

1. Step 1: Write the proportion equation
   105,575.82 : 158,143.38 = 63,321.90 : x
2. Step 2: Convert to fraction form
   105,575.82/158,143.38 = 63,321.90/x
3. Step 3: Cross multiply
   105,575.82x = 158,143.38 × 63,321.90
4. Step 4: Simplify right side
   105,575.82x = 10,013,939,294.02
5. Step 5: Solve for x
   x = 10,013,939,294.02/105,575.82
6. Step 6: Final answer
   x = 94,850.69