Finding the Fourth Proportional to 13,781.90, 19,019.46 and 7,494.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,781.90 : 19,019.46 = 7,494.27 : x
2. Step 2: Convert to fraction form
   13,781.90/19,019.46 = 7,494.27/x
3. Step 3: Cross multiply
   13,781.90x = 19,019.46 × 7,494.27
4. Step 4: Simplify right side
   13,781.90x = 142,536,968.49
5. Step 5: Solve for x
   x = 142,536,968.49/13,781.90
6. Step 6: Final answer
   x = 10,342.33