Finding the Fourth Proportional to 30,693.62, 42,362.01 and 18,763.94

Step by Step Solution

1. Step 1: Write the proportion equation
   30,693.62 : 42,362.01 = 18,763.94 : x
2. Step 2: Convert to fraction form
   30,693.62/42,362.01 = 18,763.94/x
3. Step 3: Cross multiply
   30,693.62x = 42,362.01 × 18,763.94
4. Step 4: Simplify right side
   30,693.62x = 794,878,213.92
5. Step 5: Solve for x
   x = 794,878,213.92/30,693.62
6. Step 6: Final answer
   x = 25,897.18