Finding the Fourth Proportional to 89,454.78, 123,453.81 and 59,187.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89,454.78 : 123,453.81 = 59,187.69 : x
2. Step 2: Convert to fraction form
   89,454.78/123,453.81 = 59,187.69/x
3. Step 3: Cross multiply
   89,454.78x = 123,453.81 × 59,187.69
4. Step 4: Simplify right side
   89,454.78x = 7,306,945,835.60
5. Step 5: Solve for x
   x = 7,306,945,835.60/89,454.78
6. Step 6: Final answer
   x = 81,683.12