Finding the Fourth Proportional to 105,047.70, 145,154.61 and 79,853.46

Step by Step Solution

1. Step 1: Write the proportion equation
   105,047.70 : 145,154.61 = 79,853.46 : x
2. Step 2: Convert to fraction form
   105,047.70/145,154.61 = 79,853.46/x
3. Step 3: Cross multiply
   105,047.70x = 145,154.61 × 79,853.46
4. Step 4: Simplify right side
   105,047.70x = 11,591,097,843.45
5. Step 5: Solve for x
   x = 11,591,097,843.45/105,047.70
6. Step 6: Final answer
   x = 110,341.28