Finding the Fourth Proportional to 89,415.08, 123,392.18 and 48,579

Step by Step Solution

1. Step 1: Write the proportion equation
   89,415.08 : 123,392.18 = 48,579 : x
2. Step 2: Convert to fraction form
   89,415.08/123,392.18 = 48,579/x
3. Step 3: Cross multiply
   89,415.08x = 123,392.18 × 48,579
4. Step 4: Simplify right side
   89,415.08x = 5,994,268,469.33
5. Step 5: Solve for x
   x = 5,994,268,469.33/89,415.08
6. Step 6: Final answer
   x = 67,038.68