Finding the Fourth Proportional to 13,782.35, 19,019.54 and 7,494.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,782.35 : 19,019.54 = 7,494.72 : x
2. Step 2: Convert to fraction form
   13,782.35/19,019.54 = 7,494.72/x
3. Step 3: Cross multiply
   13,782.35x = 19,019.54 × 7,494.72
4. Step 4: Simplify right side
   13,782.35x = 142,546,126.83
5. Step 5: Solve for x
   x = 142,546,126.83/13,782.35
6. Step 6: Final answer
   x = 10,342.66