Finding the Fourth Proportional to 325,694.07, 488,541.31 and 89,018.96

Step by Step Solution

1. Step 1: Write the proportion equation
   325,694.07 : 488,541.31 = 89,018.96 : x
2. Step 2: Convert to fraction form
   325,694.07/488,541.31 = 89,018.96/x
3. Step 3: Cross multiply
   325,694.07x = 488,541.31 × 89,018.96
4. Step 4: Simplify right side
   325,694.07x = 43,489,436,667.98
5. Step 5: Solve for x
   x = 43,489,436,667.98/325,694.07
6. Step 6: Final answer
   x = 133,528.49