Finding the Fourth Proportional to 105,357.29, 158,035.98 and 49,178.75

Step by Step Solution

1. Step 1: Write the proportion equation
   105,357.29 : 158,035.98 = 49,178.75 : x
2. Step 2: Convert to fraction form
   105,357.29/158,035.98 = 49,178.75/x
3. Step 3: Cross multiply
   105,357.29x = 158,035.98 × 49,178.75
4. Step 4: Simplify right side
   105,357.29x = 7,772,011,951.43
5. Step 5: Solve for x
   x = 7,772,011,951.43/105,357.29
6. Step 6: Final answer
   x = 73,768.15