Finding the Fourth Proportional to 22,488.05, 31,036.24 and 13,056.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,488.05 : 31,036.24 = 13,056.61 : x
2. Step 2: Convert to fraction form
   22,488.05/31,036.24 = 13,056.61/x
3. Step 3: Cross multiply
   22,488.05x = 31,036.24 × 13,056.61
4. Step 4: Simplify right side
   22,488.05x = 405,228,041.75
5. Step 5: Solve for x
   x = 405,228,041.75/22,488.05
6. Step 6: Final answer
   x = 18,019.71