Finding the Fourth Proportional to 19,388.42, 26,766.17 and 13,048.35

Step by Step Solution

1. Step 1: Write the proportion equation
   19,388.42 : 26,766.17 = 13,048.35 : x
2. Step 2: Convert to fraction form
   19,388.42/26,766.17 = 13,048.35/x
3. Step 3: Cross multiply
   19,388.42x = 26,766.17 × 13,048.35
4. Step 4: Simplify right side
   19,388.42x = 349,254,354.32
5. Step 5: Solve for x
   x = 349,254,354.32/19,388.42
6. Step 6: Final answer
   x = 18,013.55