Finding the Fourth Proportional to 328,354.72, 492,491.31 and 88,487.37

Step by Step Solution

1. Step 1: Write the proportion equation
   328,354.72 : 492,491.31 = 88,487.37 : x
2. Step 2: Convert to fraction form
   328,354.72/492,491.31 = 88,487.37/x
3. Step 3: Cross multiply
   328,354.72x = 492,491.31 × 88,487.37
4. Step 4: Simplify right side
   328,354.72x = 43,579,262,616.60
5. Step 5: Solve for x
   x = 43,579,262,616.60/328,354.72
6. Step 6: Final answer
   x = 132,720.07