Finding the Fourth Proportional to 105,221.61, 157,840.56 and 35,100.81

Step by Step Solution

1. Step 1: Write the proportion equation
   105,221.61 : 157,840.56 = 35,100.81 : x
2. Step 2: Convert to fraction form
   105,221.61/157,840.56 = 35,100.81/x
3. Step 3: Cross multiply
   105,221.61x = 157,840.56 × 35,100.81
4. Step 4: Simplify right side
   105,221.61x = 5,540,331,506.85
5. Step 5: Solve for x
   x = 5,540,331,506.85/105,221.61
6. Step 6: Final answer
   x = 52,653.93