Finding the Fourth Proportional to 105,778.86, 158,709.78 and 46,573

Step by Step Solution

1. Step 1: Write the proportion equation
   105,778.86 : 158,709.78 = 46,573 : x
2. Step 2: Convert to fraction form
   105,778.86/158,709.78 = 46,573/x
3. Step 3: Cross multiply
   105,778.86x = 158,709.78 × 46,573
4. Step 4: Simplify right side
   105,778.86x = 7,391,590,583.94
5. Step 5: Solve for x
   x = 7,391,590,583.94/105,778.86
6. Step 6: Final answer
   x = 69,877.77