Finding the Fourth Proportional to 281,892.52, 389,019.54 and 154,576.72

Step by Step Solution

1. Step 1: Write the proportion equation
   281,892.52 : 389,019.54 = 154,576.72 : x
2. Step 2: Convert to fraction form
   281,892.52/389,019.54 = 154,576.72/x
3. Step 3: Cross multiply
   281,892.52x = 389,019.54 × 154,576.72
4. Step 4: Simplify right side
   281,892.52x = 60,133,364,509.11
5. Step 5: Solve for x
   x = 60,133,364,509.11/281,892.52
6. Step 6: Final answer
   x = 213,320.18