Finding the Fourth Proportional to 533,327, 736,002.72 and 318,426.96

Step by Step Solution

1. Step 1: Write the proportion equation
   533,327 : 736,002.72 = 318,426.96 : x
2. Step 2: Convert to fraction form
   533,327/736,002.72 = 318,426.96/x
3. Step 3: Cross multiply
   533,327x = 736,002.72 × 318,426.96
4. Step 4: Simplify right side
   533,327x = 234,363,108,681.33
5. Step 5: Solve for x
   x = 234,363,108,681.33/533,327
6. Step 6: Final answer
   x = 439,436.05