Finding the Fourth Proportional to 284,728.10, 427,005.86 and 149,719.46

Step by Step Solution

1. Step 1: Write the proportion equation
   284,728.10 : 427,005.86 = 149,719.46 : x
2. Step 2: Convert to fraction form
   284,728.10/427,005.86 = 149,719.46/x
3. Step 3: Cross multiply
   284,728.10x = 427,005.86 × 149,719.46
4. Step 4: Simplify right side
   284,728.10x = 63,931,083,892.41
5. Step 5: Solve for x
   x = 63,931,083,892.41/284,728.10
6. Step 6: Final answer
   x = 224,533.81