Finding the Fourth Proportional to 89,004.31, 122,861.37 and 58,389.04

Step by Step Solution

1. Step 1: Write the proportion equation
   89,004.31 : 122,861.37 = 58,389.04 : x
2. Step 2: Convert to fraction form
   89,004.31/122,861.37 = 58,389.04/x
3. Step 3: Cross multiply
   89,004.31x = 122,861.37 × 58,389.04
4. Step 4: Simplify right side
   89,004.31x = 7,173,757,819.92
5. Step 5: Solve for x
   x = 7,173,757,819.92/89,004.31
6. Step 6: Final answer
   x = 80,600.12