Finding the Fourth Proportional to 284,116.59, 392,083.04 and 155,056.05

Step by Step Solution

1. Step 1: Write the proportion equation
   284,116.59 : 392,083.04 = 155,056.05 : x
2. Step 2: Convert to fraction form
   284,116.59/392,083.04 = 155,056.05/x
3. Step 3: Cross multiply
   284,116.59x = 392,083.04 × 155,056.05
4. Step 4: Simplify right side
   284,116.59x = 60,794,847,454.39
5. Step 5: Solve for x
   x = 60,794,847,454.39/284,116.59
6. Step 6: Final answer
   x = 213,978.52