Finding the Fourth Proportional to 30,695.49, 42,356.82 and 18,770.87

Step by Step Solution

1. Step 1: Write the proportion equation
   30,695.49 : 42,356.82 = 18,770.87 : x
2. Step 2: Convert to fraction form
   30,695.49/42,356.82 = 18,770.87/x
3. Step 3: Cross multiply
   30,695.49x = 42,356.82 × 18,770.87
4. Step 4: Simplify right side
   30,695.49x = 795,074,538.12
5. Step 5: Solve for x
   x = 795,074,538.12/30,695.49
6. Step 6: Final answer
   x = 25,902.00