Finding the Fourth Proportional to 22,490.84, 31,041.15 and 13,064.87

Step by Step Solution

1. Step 1: Write the proportion equation
   22,490.84 : 31,041.15 = 13,064.87 : x
2. Step 2: Convert to fraction form
   22,490.84/31,041.15 = 13,064.87/x
3. Step 3: Cross multiply
   22,490.84x = 31,041.15 × 13,064.87
4. Step 4: Simplify right side
   22,490.84x = 405,548,589.40
5. Step 5: Solve for x
   x = 405,548,589.40/22,490.84
6. Step 6: Final answer
   x = 18,031.72