Finding the Fourth Proportional to 89,455.12, 123,445.56 and 49,168.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89,455.12 : 123,445.56 = 49,168.96 : x
2. Step 2: Convert to fraction form
   89,455.12/123,445.56 = 49,168.96/x
3. Step 3: Cross multiply
   89,455.12x = 123,445.56 × 49,168.96
4. Step 4: Simplify right side
   89,455.12x = 6,069,689,801.82
5. Step 5: Solve for x
   x = 6,069,689,801.82/89,455.12
6. Step 6: Final answer
   x = 67,851.79