Finding the Fourth Proportional to 30,736.56, 42,427.08 and 18,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,736.56 : 42,427.08 = 18,160.50 : x
2. Step 2: Convert to fraction form
   30,736.56/42,427.08 = 18,160.50/x
3. Step 3: Cross multiply
   30,736.56x = 42,427.08 × 18,160.50
4. Step 4: Simplify right side
   30,736.56x = 770,496,986.34
5. Step 5: Solve for x
   x = 770,496,986.34/30,736.56
6. Step 6: Final answer
   x = 25,067.77