Finding the Fourth Proportional to 22,488.84, 31,031.10 and 13,055.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,488.84 : 31,031.10 = 13,055.76 : x
2. Step 2: Convert to fraction form
   22,488.84/31,031.10 = 13,055.76/x
3. Step 3: Cross multiply
   22,488.84x = 31,031.10 × 13,055.76
4. Step 4: Simplify right side
   22,488.84x = 405,134,594.14
5. Step 5: Solve for x
   x = 405,134,594.14/22,488.84
6. Step 6: Final answer
   x = 18,014.92