Finding the Fourth Proportional to 284,096.72, 392,075.60 and 163,280.16

Step by Step Solution

1. Step 1: Write the proportion equation
   284,096.72 : 392,075.60 = 163,280.16 : x
2. Step 2: Convert to fraction form
   284,096.72/392,075.60 = 163,280.16/x
3. Step 3: Cross multiply
   284,096.72x = 392,075.60 × 163,280.16
4. Step 4: Simplify right side
   284,096.72x = 64,018,166,700.10
5. Step 5: Solve for x
   x = 64,018,166,700.10/284,096.72
6. Step 6: Final answer
   x = 225,339.34