Finding the Fourth Proportional to 105,086.56, 157,637.60 and 30,203.68

Step by Step Solution

1. Step 1: Write the proportion equation
   105,086.56 : 157,637.60 = 30,203.68 : x
2. Step 2: Convert to fraction form
   105,086.56/157,637.60 = 30,203.68/x
3. Step 3: Cross multiply
   105,086.56x = 157,637.60 × 30,203.68
4. Step 4: Simplify right side
   105,086.56x = 4,761,235,626.37
5. Step 5: Solve for x
   x = 4,761,235,626.37/105,086.56
6. Step 6: Final answer
   x = 45,307.75