Finding the Fourth Proportional to 19,123.90, 26,390.81 and 10,626.04

Step by Step Solution

1. Step 1: Write the proportion equation
   19,123.90 : 26,390.81 = 10,626.04 : x
2. Step 2: Convert to fraction form
   19,123.90/26,390.81 = 10,626.04/x
3. Step 3: Cross multiply
   19,123.90x = 26,390.81 × 10,626.04
4. Step 4: Simplify right side
   19,123.90x = 280,429,802.69
5. Step 5: Solve for x
   x = 280,429,802.69/19,123.90
6. Step 6: Final answer
   x = 14,663.84