Finding the Fourth Proportional to 28,300.56, 42,436.44 and 10,757.04

Step by Step Solution

1. Step 1: Write the proportion equation
   28,300.56 : 42,436.44 = 10,757.04 : x
2. Step 2: Convert to fraction form
   28,300.56/42,436.44 = 10,757.04/x
3. Step 3: Cross multiply
   28,300.56x = 42,436.44 × 10,757.04
4. Step 4: Simplify right side
   28,300.56x = 456,490,482.54
5. Step 5: Solve for x
   x = 456,490,482.54/28,300.56
6. Step 6: Final answer
   x = 16,130.09