Finding the Fourth Proportional to 22,558, 31,130.04 and 13,132.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,558 : 31,130.04 = 13,132.84 : x
2. Step 2: Convert to fraction form
   22,558/31,130.04 = 13,132.84/x
3. Step 3: Cross multiply
   22,558x = 31,130.04 × 13,132.84
4. Step 4: Simplify right side
   22,558x = 408,825,834.51
5. Step 5: Solve for x
   x = 408,825,834.51/22,558
6. Step 6: Final answer
   x = 18,123.32