Finding the Fourth Proportional to 30,769.78, 42,462.72 and 18,194.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,769.78 : 42,462.72 = 18,194.52 : x
2. Step 2: Convert to fraction form
   30,769.78/42,462.72 = 18,194.52/x
3. Step 3: Cross multiply
   30,769.78x = 42,462.72 × 18,194.52
4. Step 4: Simplify right side
   30,769.78x = 772,588,808.29
5. Step 5: Solve for x
   x = 772,588,808.29/30,769.78
6. Step 6: Final answer
   x = 25,108.69