Finding the Fourth Proportional to 30,537.86, 42,141.20 and 17,109.68

Step by Step Solution

1. Step 1: Write the proportion equation
   30,537.86 : 42,141.20 = 17,109.68 : x
2. Step 2: Convert to fraction form
   30,537.86/42,141.20 = 17,109.68/x
3. Step 3: Cross multiply
   30,537.86x = 42,141.20 × 17,109.68
4. Step 4: Simplify right side
   30,537.86x = 721,022,150.56
5. Step 5: Solve for x
   x = 721,022,150.56/30,537.86
6. Step 6: Final answer
   x = 23,610.77