Finding the Fourth Proportional to 30,624.78, 42,266.82 and 18,695.07

Step by Step Solution

1. Step 1: Write the proportion equation
   30,624.78 : 42,266.82 = 18,695.07 : x
2. Step 2: Convert to fraction form
   30,624.78/42,266.82 = 18,695.07/x
3. Step 3: Cross multiply
   30,624.78x = 42,266.82 × 18,695.07
4. Step 4: Simplify right side
   30,624.78x = 790,181,158.58
5. Step 5: Solve for x
   x = 790,181,158.58/30,624.78
6. Step 6: Final answer
   x = 25,802.02