Finding the Fourth Proportional to 89,071.56, 122,918.81 and 48,785.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,071.56 : 122,918.81 = 48,785.31 : x
2. Step 2: Convert to fraction form
   89,071.56/122,918.81 = 48,785.31/x
3. Step 3: Cross multiply
   89,071.56x = 122,918.81 × 48,785.31
4. Step 4: Simplify right side
   89,071.56x = 5,996,632,006.75
5. Step 5: Solve for x
   x = 5,996,632,006.75/89,071.56
6. Step 6: Final answer
   x = 67,323.76