Finding the Fourth Proportional to 50,462, 69,639.72 and 28,106

Step by Step Solution

1. Step 1: Write the proportion equation
   50,462 : 69,639.72 = 28,106 : x
2. Step 2: Convert to fraction form
   50,462/69,639.72 = 28,106/x
3. Step 3: Cross multiply
   50,462x = 69,639.72 × 28,106
4. Step 4: Simplify right side
   50,462x = 1,957,293,970.32
5. Step 5: Solve for x
   x = 1,957,293,970.32/50,462
6. Step 6: Final answer
   x = 38,787.48