Finding the Fourth Proportional to 12,457.70, 17,168.61 and 10,563.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,457.70 : 17,168.61 = 10,563.22 : x
2. Step 2: Convert to fraction form
   12,457.70/17,168.61 = 10,563.22/x
3. Step 3: Cross multiply
   12,457.70x = 17,168.61 × 10,563.22
4. Step 4: Simplify right side
   12,457.70x = 181,355,804.52
5. Step 5: Solve for x
   x = 181,355,804.52/12,457.70
6. Step 6: Final answer
   x = 14,557.73