Finding the Fourth Proportional to 105,890.88, 158,592.42 and 63,678.36

Step by Step Solution

1. Step 1: Write the proportion equation
   105,890.88 : 158,592.42 = 63,678.36 : x
2. Step 2: Convert to fraction form
   105,890.88/158,592.42 = 63,678.36/x
3. Step 3: Cross multiply
   105,890.88x = 158,592.42 × 63,678.36
4. Step 4: Simplify right side
   105,890.88x = 10,098,905,214.03
5. Step 5: Solve for x
   x = 10,098,905,214.03/105,890.88
6. Step 6: Final answer
   x = 95,370.87