Finding the Fourth Proportional to 284,181.69, 392,168.59 and 156,857.25

Step by Step Solution

1. Step 1: Write the proportion equation
   284,181.69 : 392,168.59 = 156,857.25 : x
2. Step 2: Convert to fraction form
   284,181.69/392,168.59 = 156,857.25/x
3. Step 3: Cross multiply
   284,181.69x = 392,168.59 × 156,857.25
4. Step 4: Simplify right side
   284,181.69x = 61,514,486,563.78
5. Step 5: Solve for x
   x = 61,514,486,563.78/284,181.69
6. Step 6: Final answer
   x = 216,461.82