Finding the Fourth Proportional to 281,423.98, 388,362.37 and 152,359.16

Step by Step Solution

1. Step 1: Write the proportion equation
   281,423.98 : 388,362.37 = 152,359.16 : x
2. Step 2: Convert to fraction form
   281,423.98/388,362.37 = 152,359.16/x
3. Step 3: Cross multiply
   281,423.98x = 388,362.37 × 152,359.16
4. Step 4: Simplify right side
   281,423.98x = 59,170,562,146.10
5. Step 5: Solve for x
   x = 59,170,562,146.10/281,423.98
6. Step 6: Final answer
   x = 210,254.16