Finding the Fourth Proportional to 89,066.72, 122,913.44 and 48,779.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,066.72 : 122,913.44 = 48,779.76 : x
2. Step 2: Convert to fraction form
   89,066.72/122,913.44 = 48,779.76/x
3. Step 3: Cross multiply
   89,066.72x = 122,913.44 × 48,779.76
4. Step 4: Simplify right side
   89,066.72x = 5,995,688,103.97
5. Step 5: Solve for x
   x = 5,995,688,103.97/89,066.72
6. Step 6: Final answer
   x = 67,316.82