Finding the Fourth Proportional to 105,280.20, 157,935.96 and 35,142.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,280.20 : 157,935.96 = 35,142.84 : x
2. Step 2: Convert to fraction form
   105,280.20/157,935.96 = 35,142.84/x
3. Step 3: Cross multiply
   105,280.20x = 157,935.96 × 35,142.84
4. Step 4: Simplify right side
   105,280.20x = 5,550,318,172.53
5. Step 5: Solve for x
   x = 5,550,318,172.53/105,280.20
6. Step 6: Final answer
   x = 52,719.49