Finding the Fourth Proportional to 433,061.52, 648,685.08 and 275,208.72

Step by Step Solution

1. Step 1: Write the proportion equation
   433,061.52 : 648,685.08 = 275,208.72 : x
2. Step 2: Convert to fraction form
   433,061.52/648,685.08 = 275,208.72/x
3. Step 3: Cross multiply
   433,061.52x = 648,685.08 × 275,208.72
4. Step 4: Simplify right side
   433,061.52x = 178,523,790,549.90
5. Step 5: Solve for x
   x = 178,523,790,549.90/433,061.52
6. Step 6: Final answer
   x = 412,236.56