Finding the Fourth Proportional to 49,456.72, 74,162.04 and 28,686.16

Step by Step Solution

1. Step 1: Write the proportion equation
   49,456.72 : 74,162.04 = 28,686.16 : x
2. Step 2: Convert to fraction form
   49,456.72/74,162.04 = 28,686.16/x
3. Step 3: Cross multiply
   49,456.72x = 74,162.04 × 28,686.16
4. Step 4: Simplify right side
   49,456.72x = 2,127,424,145.37
5. Step 5: Solve for x
   x = 2,127,424,145.37/49,456.72
6. Step 6: Final answer
   x = 43,015.88