Finding the Fourth Proportional to 105,747.30, 158,584.06 and 42,551.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105,747.30 : 158,584.06 = 42,551.05 : x
2. Step 2: Convert to fraction form
   105,747.30/158,584.06 = 42,551.05/x
3. Step 3: Cross multiply
   105,747.30x = 158,584.06 × 42,551.05
4. Step 4: Simplify right side
   105,747.30x = 6,747,918,053.51
5. Step 5: Solve for x
   x = 6,747,918,053.51/105,747.30
6. Step 6: Final answer
   x = 63,811.73