Finding the Fourth Proportional to 284,111.94, 392,064.19 and 156,784.80

Step by Step Solution

1. Step 1: Write the proportion equation
   284,111.94 : 392,064.19 = 156,784.80 : x
2. Step 2: Convert to fraction form
   284,111.94/392,064.19 = 156,784.80/x
3. Step 3: Cross multiply
   284,111.94x = 392,064.19 × 156,784.80
4. Step 4: Simplify right side
   284,111.94x = 61,469,705,616.31
5. Step 5: Solve for x
   x = 61,469,705,616.31/284,111.94
6. Step 6: Final answer
   x = 216,357.35