Finding the Fourth Proportional to 22,538.40, 31,100.25 and 12,465.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,538.40 : 31,100.25 = 12,465.46 : x
2. Step 2: Convert to fraction form
   22,538.40/31,100.25 = 12,465.46/x
3. Step 3: Cross multiply
   22,538.40x = 31,100.25 × 12,465.46
4. Step 4: Simplify right side
   22,538.40x = 387,678,922.37
5. Step 5: Solve for x
   x = 387,678,922.37/22,538.40
6. Step 6: Final answer
   x = 17,200.82