Finding the Fourth Proportional to 30,547.86, 42,151.77 and 17,118.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,547.86 : 42,151.77 = 17,118.06 : x
2. Step 2: Convert to fraction form
   30,547.86/42,151.77 = 17,118.06/x
3. Step 3: Cross multiply
   30,547.86x = 42,151.77 × 17,118.06
4. Step 4: Simplify right side
   30,547.86x = 721,556,527.97
5. Step 5: Solve for x
   x = 721,556,527.97/30,547.86
6. Step 6: Final answer
   x = 23,620.53