Finding the Fourth Proportional to 49,388.83, 68,019.82 and 42,672.31

Step by Step Solution

1. Step 1: Write the proportion equation
   49,388.83 : 68,019.82 = 42,672.31 : x
2. Step 2: Convert to fraction form
   49,388.83/68,019.82 = 42,672.31/x
3. Step 3: Cross multiply
   49,388.83x = 68,019.82 × 42,672.31
4. Step 4: Simplify right side
   49,388.83x = 2,902,562,845.18
5. Step 5: Solve for x
   x = 2,902,562,845.18/49,388.83
6. Step 6: Final answer
   x = 58,769.62