Finding the Fourth Proportional to 109,112.07, 163,518.81 and 82,436.14

Step by Step Solution

1. Step 1: Write the proportion equation
   109,112.07 : 163,518.81 = 82,436.14 : x
2. Step 2: Convert to fraction form
   109,112.07/163,518.81 = 82,436.14/x
3. Step 3: Cross multiply
   109,112.07x = 163,518.81 × 82,436.14
4. Step 4: Simplify right side
   109,112.07x = 13,479,859,513.79
5. Step 5: Solve for x
   x = 13,479,859,513.79/109,112.07
6. Step 6: Final answer
   x = 123,541.41