Finding the Fourth Proportional to 89,355.48, 123,316.86 and 59,088.20

Step by Step Solution

1. Step 1: Write the proportion equation
   89,355.48 : 123,316.86 = 59,088.20 : x
2. Step 2: Convert to fraction form
   89,355.48/123,316.86 = 59,088.20/x
3. Step 3: Cross multiply
   89,355.48x = 123,316.86 × 59,088.20
4. Step 4: Simplify right side
   89,355.48x = 7,286,571,287.05
5. Step 5: Solve for x
   x = 7,286,571,287.05/89,355.48
6. Step 6: Final answer
   x = 81,545.88