Finding the Fourth Proportional to 22,784.99, 31,443.30 and 13,226.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,784.99 : 31,443.30 = 13,226.76 : x
2. Step 2: Convert to fraction form
   22,784.99/31,443.30 = 13,226.76/x
3. Step 3: Cross multiply
   22,784.99x = 31,443.30 × 13,226.76
4. Step 4: Simplify right side
   22,784.99x = 415,892,982.71
5. Step 5: Solve for x
   x = 415,892,982.71/22,784.99
6. Step 6: Final answer
   x = 18,252.94