Finding the Fourth Proportional to 105,867, 146,109.42 and 61,155

Step by Step Solution

1. Step 1: Write the proportion equation
   105,867 : 146,109.42 = 61,155 : x
2. Step 2: Convert to fraction form
   105,867/146,109.42 = 61,155/x
3. Step 3: Cross multiply
   105,867x = 146,109.42 × 61,155
4. Step 4: Simplify right side
   105,867x = 8,935,321,580.10
5. Step 5: Solve for x
   x = 8,935,321,580.10/105,867
6. Step 6: Final answer
   x = 84,401.39