Finding the Fourth Proportional to 437,665.50, 603,978.48 and 236,461.50

Step by Step Solution

1. Step 1: Write the proportion equation
   437,665.50 : 603,978.48 = 236,461.50 : x
2. Step 2: Convert to fraction form
   437,665.50/603,978.48 = 236,461.50/x
3. Step 3: Cross multiply
   437,665.50x = 603,978.48 × 236,461.50
4. Step 4: Simplify right side
   437,665.50x = 142,817,657,348.52
5. Step 5: Solve for x
   x = 142,817,657,348.52/437,665.50
6. Step 6: Final answer
   x = 326,316.92