Finding the Fourth Proportional to 35,727.51, 49,292.61 and 20,618.17

Step by Step Solution

1. Step 1: Write the proportion equation
   35,727.51 : 49,292.61 = 20,618.17 : x
2. Step 2: Convert to fraction form
   35,727.51/49,292.61 = 20,618.17/x
3. Step 3: Cross multiply
   35,727.51x = 49,292.61 × 20,618.17
4. Step 4: Simplify right side
   35,727.51x = 1,016,323,412.72
5. Step 5: Solve for x
   x = 1,016,323,412.72/35,727.51
6. Step 6: Final answer
   x = 28,446.53