Finding the Fourth Proportional to 28,093.65, 42,142.10 and 10,563.63

Step by Step Solution

1. Step 1: Write the proportion equation
   28,093.65 : 42,142.10 = 10,563.63 : x
2. Step 2: Convert to fraction form
   28,093.65/42,142.10 = 10,563.63/x
3. Step 3: Cross multiply
   28,093.65x = 42,142.10 × 10,563.63
4. Step 4: Simplify right side
   28,093.65x = 445,173,499.00
5. Step 5: Solve for x
   x = 445,173,499.00/28,093.65
6. Step 6: Final answer
   x = 15,846.05