Finding the Fourth Proportional to 122,076.72, 183,183.12 and 65,915.64

Step by Step Solution

1. Step 1: Write the proportion equation
   122,076.72 : 183,183.12 = 65,915.64 : x
2. Step 2: Convert to fraction form
   122,076.72/183,183.12 = 65,915.64/x
3. Step 3: Cross multiply
   122,076.72x = 183,183.12 × 65,915.64
4. Step 4: Simplify right side
   122,076.72x = 12,074,632,592.00
5. Step 5: Solve for x
   x = 12,074,632,592.00/122,076.72
6. Step 6: Final answer
   x = 98,910.20