Finding the Fourth Proportional to 28,628, 42,944.16 and 10,160

Step by Step Solution

1. Step 1: Write the proportion equation
   28,628 : 42,944.16 = 10,160 : x
2. Step 2: Convert to fraction form
   28,628/42,944.16 = 10,160/x
3. Step 3: Cross multiply
   28,628x = 42,944.16 × 10,160
4. Step 4: Simplify right side
   28,628x = 436,312,665.60
5. Step 5: Solve for x
   x = 436,312,665.60/28,628
6. Step 6: Final answer
   x = 15,240.77