Finding the Fourth Proportional to 22,496.47, 31,049.10 and 12,935.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,496.47 : 31,049.10 = 12,935.60 : x
2. Step 2: Convert to fraction form
   22,496.47/31,049.10 = 12,935.60/x
3. Step 3: Cross multiply
   22,496.47x = 31,049.10 × 12,935.60
4. Step 4: Simplify right side
   22,496.47x = 401,638,699.15
5. Step 5: Solve for x
   x = 401,638,699.15/22,496.47
6. Step 6: Final answer
   x = 17,853.41