Finding the Fourth Proportional to 49,638.72, 68,502.60 and 26,978.97

Step by Step Solution

1. Step 1: Write the proportion equation
   49,638.72 : 68,502.60 = 26,978.97 : x
2. Step 2: Convert to fraction form
   49,638.72/68,502.60 = 26,978.97/x
3. Step 3: Cross multiply
   49,638.72x = 68,502.60 × 26,978.97
4. Step 4: Simplify right side
   49,638.72x = 1,848,129,590.32
5. Step 5: Solve for x
   x = 1,848,129,590.32/49,638.72
6. Step 6: Final answer
   x = 37,231.61