Finding the Fourth Proportional to 28,630, 42,947.16 and 10,162

Step by Step Solution

1. Step 1: Write the proportion equation
   28,630 : 42,947.16 = 10,162 : x
2. Step 2: Convert to fraction form
   28,630/42,947.16 = 10,162/x
3. Step 3: Cross multiply
   28,630x = 42,947.16 × 10,162
4. Step 4: Simplify right side
   28,630x = 436,429,039.92
5. Step 5: Solve for x
   x = 436,429,039.92/28,630
6. Step 6: Final answer
   x = 15,243.77