Finding the Fourth Proportional to 428,137.98, 590,849.86 and 237,151.34

Step by Step Solution

1. Step 1: Write the proportion equation
   428,137.98 : 590,849.86 = 237,151.34 : x
2. Step 2: Convert to fraction form
   428,137.98/590,849.86 = 237,151.34/x
3. Step 3: Cross multiply
   428,137.98x = 590,849.86 × 237,151.34
4. Step 4: Simplify right side
   428,137.98x = 140,120,836,037.81
5. Step 5: Solve for x
   x = 140,120,836,037.81/428,137.98
6. Step 6: Final answer
   x = 327,279.62