Finding the Fourth Proportional to 23,925.51, 33,016.94 and 13,170.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,925.51 : 33,016.94 = 13,170.15 : x
2. Step 2: Convert to fraction form
   23,925.51/33,016.94 = 13,170.15/x
3. Step 3: Cross multiply
   23,925.51x = 33,016.94 × 13,170.15
4. Step 4: Simplify right side
   23,925.51x = 434,838,052.34
5. Step 5: Solve for x
   x = 434,838,052.34/23,925.51
6. Step 6: Final answer
   x = 18,174.66