Finding the Fourth Proportional to 105,866.28, 146,085.76 and 62,838.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,866.28 : 146,085.76 = 62,838.42 : x
2. Step 2: Convert to fraction form
   105,866.28/146,085.76 = 62,838.42/x
3. Step 3: Cross multiply
   105,866.28x = 146,085.76 × 62,838.42
4. Step 4: Simplify right side
   105,866.28x = 9,179,799,106.22
5. Step 5: Solve for x
   x = 9,179,799,106.22/105,866.28
6. Step 6: Final answer
   x = 86,711.26