Finding the Fourth Proportional to 201,336.81, 277,846.59 and 109,456.28

Step by Step Solution

1. Step 1: Write the proportion equation
   201,336.81 : 277,846.59 = 109,456.28 : x
2. Step 2: Convert to fraction form
   201,336.81/277,846.59 = 109,456.28/x
3. Step 3: Cross multiply
   201,336.81x = 277,846.59 × 109,456.28
4. Step 4: Simplify right side
   201,336.81x = 30,412,053,599.55
5. Step 5: Solve for x
   x = 30,412,053,599.55/201,336.81
6. Step 6: Final answer
   x = 151,050.64