Finding the Fourth Proportional to 30,613.95, 42,243.99 and 17,186.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,613.95 : 42,243.99 = 17,186.69 : x
2. Step 2: Convert to fraction form
   30,613.95/42,243.99 = 17,186.69/x
3. Step 3: Cross multiply
   30,613.95x = 42,243.99 × 17,186.69
4. Step 4: Simplify right side
   30,613.95x = 726,034,360.49
5. Step 5: Solve for x
   x = 726,034,360.49/30,613.95
6. Step 6: Final answer
   x = 23,715.80