Finding the Fourth Proportional to 13,314.42, 19,870.38 and 11,838.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,314.42 : 19,870.38 = 11,838.24 : x
2. Step 2: Convert to fraction form
   13,314.42/19,870.38 = 11,838.24/x
3. Step 3: Cross multiply
   13,314.42x = 19,870.38 × 11,838.24
4. Step 4: Simplify right side
   13,314.42x = 235,230,327.33
5. Step 5: Solve for x
   x = 235,230,327.33/13,314.42
6. Step 6: Final answer
   x = 17,667.34