Finding the Fourth Proportional to 721,042.52, 1,081,562.42 and 271,864.16

Step by Step Solution

1. Step 1: Write the proportion equation
   721,042.52 : 1,081,562.42 = 271,864.16 : x
2. Step 2: Convert to fraction form
   721,042.52/1,081,562.42 = 271,864.16/x
3. Step 3: Cross multiply
   721,042.52x = 1,081,562.42 × 271,864.16
4. Step 4: Simplify right side
   721,042.52x = 294,038,054,072.72
5. Step 5: Solve for x
   x = 294,038,054,072.72/721,042.52
6. Step 6: Final answer
   x = 407,795.72