Finding the Fourth Proportional to 105,830.35, 158,794.12 and 45,877.12

Step by Step Solution

1. Step 1: Write the proportion equation
   105,830.35 : 158,794.12 = 45,877.12 : x
2. Step 2: Convert to fraction form
   105,830.35/158,794.12 = 45,877.12/x
3. Step 3: Cross multiply
   105,830.35x = 158,794.12 × 45,877.12
4. Step 4: Simplify right side
   105,830.35x = 7,285,016,558.90
5. Step 5: Solve for x
   x = 7,285,016,558.90/105,830.35
6. Step 6: Final answer
   x = 68,836.74