Finding the Fourth Proportional to 277,962.72, 383,588.48 and 150,638.30

Step by Step Solution

1. Step 1: Write the proportion equation
   277,962.72 : 383,588.48 = 150,638.30 : x
2. Step 2: Convert to fraction form
   277,962.72/383,588.48 = 150,638.30/x
3. Step 3: Cross multiply
   277,962.72x = 383,588.48 × 150,638.30
4. Step 4: Simplify right side
   277,962.72x = 57,783,116,526.78
5. Step 5: Solve for x
   x = 57,783,116,526.78/277,962.72
6. Step 6: Final answer
   x = 207,880.81