Finding the Fourth Proportional to 105,636.73, 145,782.71 and 60,322.09

Step by Step Solution

1. Step 1: Write the proportion equation
   105,636.73 : 145,782.71 = 60,322.09 : x
2. Step 2: Convert to fraction form
   105,636.73/145,782.71 = 60,322.09/x
3. Step 3: Cross multiply
   105,636.73x = 145,782.71 × 60,322.09
4. Step 4: Simplify right side
   105,636.73x = 8,793,917,753.06
5. Step 5: Solve for x
   x = 8,793,917,753.06/105,636.73
6. Step 6: Final answer
   x = 83,246.78