Finding the Fourth Proportional to 284,359.01, 392,417.33 and 155,294.15

Step by Step Solution

1. Step 1: Write the proportion equation
   284,359.01 : 392,417.33 = 155,294.15 : x
2. Step 2: Convert to fraction form
   284,359.01/392,417.33 = 155,294.15/x
3. Step 3: Cross multiply
   284,359.01x = 392,417.33 × 155,294.15
4. Step 4: Simplify right side
   284,359.01x = 60,940,112,969.06
5. Step 5: Solve for x
   x = 60,940,112,969.06/284,359.01
6. Step 6: Final answer
   x = 214,306.96