Finding the Fourth Proportional to 89,619.76, 123,678.06 and 48,786.61

Step by Step Solution

1. Step 1: Write the proportion equation
   89,619.76 : 123,678.06 = 48,786.61 : x
2. Step 2: Convert to fraction form
   89,619.76/123,678.06 = 48,786.61/x
3. Step 3: Cross multiply
   89,619.76x = 123,678.06 × 48,786.61
4. Step 4: Simplify right side
   89,619.76x = 6,033,832,416.45
5. Step 5: Solve for x
   x = 6,033,832,416.45/89,619.76
6. Step 6: Final answer
   x = 67,327.03