Finding the Fourth Proportional to 284,158.83, 392,137.30 and 156,834.43

Step by Step Solution

1. Step 1: Write the proportion equation
   284,158.83 : 392,137.30 = 156,834.43 : x
2. Step 2: Convert to fraction form
   284,158.83/392,137.30 = 156,834.43/x
3. Step 3: Cross multiply
   284,158.83x = 392,137.30 × 156,834.43
4. Step 4: Simplify right side
   284,158.83x = 61,500,629,142.94
5. Step 5: Solve for x
   x = 61,500,629,142.94/284,158.83
6. Step 6: Final answer
   x = 216,430.47