Finding the Fourth Proportional to 89,754.86, 123,859.56 and 48,920.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,754.86 : 123,859.56 = 48,920.28 : x
2. Step 2: Convert to fraction form
   89,754.86/123,859.56 = 48,920.28/x
3. Step 3: Cross multiply
   89,754.86x = 123,859.56 × 48,920.28
4. Step 4: Simplify right side
   89,754.86x = 6,059,244,355.88
5. Step 5: Solve for x
   x = 6,059,244,355.88/89,754.86
6. Step 6: Final answer
   x = 67,508.82