Finding the Fourth Proportional to 105,761.64, 158,430.96 and 63,618.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,761.64 : 158,430.96 = 63,618.42 : x
2. Step 2: Convert to fraction form
   105,761.64/158,430.96 = 63,618.42/x
3. Step 3: Cross multiply
   105,761.64x = 158,430.96 × 63,618.42
4. Step 4: Simplify right side
   105,761.64x = 10,079,127,354.28
5. Step 5: Solve for x
   x = 10,079,127,354.28/105,761.64
6. Step 6: Final answer
   x = 95,300.41