Finding the Fourth Proportional to 50,717.60, 69,989.69 and 28,054.81

Step by Step Solution

1. Step 1: Write the proportion equation
   50,717.60 : 69,989.69 = 28,054.81 : x
2. Step 2: Convert to fraction form
   50,717.60/69,989.69 = 28,054.81/x
3. Step 3: Cross multiply
   50,717.60x = 69,989.69 × 28,054.81
4. Step 4: Simplify right side
   50,717.60x = 1,963,547,454.72
5. Step 5: Solve for x
   x = 1,963,547,454.72/50,717.60
6. Step 6: Final answer
   x = 38,715.31