Finding the Fourth Proportional to 28,621.96, 42,933.06 and 10,141

Step by Step Solution

1. Step 1: Write the proportion equation
   28,621.96 : 42,933.06 = 10,141 : x
2. Step 2: Convert to fraction form
   28,621.96/42,933.06 = 10,141/x
3. Step 3: Cross multiply
   28,621.96x = 42,933.06 × 10,141
4. Step 4: Simplify right side
   28,621.96x = 435,384,161.46
5. Step 5: Solve for x
   x = 435,384,161.46/28,621.96
6. Step 6: Final answer
   x = 15,211.54