Finding the Fourth Proportional to 22,826.81, 31,501.00 and 13,872.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,826.81 : 31,501.00 = 13,872.64 : x
2. Step 2: Convert to fraction form
   22,826.81/31,501.00 = 13,872.64/x
3. Step 3: Cross multiply
   22,826.81x = 31,501.00 × 13,872.64
4. Step 4: Simplify right side
   22,826.81x = 437,002,118.89
5. Step 5: Solve for x
   x = 437,002,118.89/22,826.81
6. Step 6: Final answer
   x = 19,144.25