Finding the Fourth Proportional to 400,160.72, 599,574.72 and 281,582.93

Step by Step Solution

1. Step 1: Write the proportion equation
   400,160.72 : 599,574.72 = 281,582.93 : x
2. Step 2: Convert to fraction form
   400,160.72/599,574.72 = 281,582.93/x
3. Step 3: Cross multiply
   400,160.72x = 599,574.72 × 281,582.93
4. Step 4: Simplify right side
   400,160.72x = 168,830,006,411.53
5. Step 5: Solve for x
   x = 168,830,006,411.53/400,160.72
6. Step 6: Final answer
   x = 421,905.49