Finding the Fourth Proportional to 400,150.79, 599,559.72 and 281,573

Step by Step Solution

1. Step 1: Write the proportion equation
   400,150.79 : 599,559.72 = 281,573 : x
2. Step 2: Convert to fraction form
   400,150.79/599,559.72 = 281,573/x
3. Step 3: Cross multiply
   400,150.79x = 599,559.72 × 281,573
4. Step 4: Simplify right side
   400,150.79x = 168,819,829,039.56
5. Step 5: Solve for x
   x = 168,819,829,039.56/400,150.79
6. Step 6: Final answer
   x = 421,890.53