Finding the Fourth Proportional to 105,540.76, 158,309.52 and 42,376.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,540.76 : 158,309.52 = 42,376.96 : x
2. Step 2: Convert to fraction form
   105,540.76/158,309.52 = 42,376.96/x
3. Step 3: Cross multiply
   105,540.76x = 158,309.52 × 42,376.96
4. Step 4: Simplify right side
   105,540.76x = 6,708,676,196.66
5. Step 5: Solve for x
   x = 6,708,676,196.66/105,540.76
6. Step 6: Final answer
   x = 63,564.79