Finding the Fourth Proportional to 89,067.69, 122,914.80 and 48,780.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,067.69 : 122,914.80 = 48,780.72 : x
2. Step 2: Convert to fraction form
   89,067.69/122,914.80 = 48,780.72/x
3. Step 3: Cross multiply
   89,067.69x = 122,914.80 × 48,780.72
4. Step 4: Simplify right side
   89,067.69x = 5,995,872,442.66
5. Step 5: Solve for x
   x = 5,995,872,442.66/89,067.69
6. Step 6: Final answer
   x = 67,318.15