Finding the Fourth Proportional to 30,610.82, 42,242.32 and 16,998.15

Step by Step Solution

1. Step 1: Write the proportion equation
   30,610.82 : 42,242.32 = 16,998.15 : x
2. Step 2: Convert to fraction form
   30,610.82/42,242.32 = 16,998.15/x
3. Step 3: Cross multiply
   30,610.82x = 42,242.32 × 16,998.15
4. Step 4: Simplify right side
   30,610.82x = 718,041,495.27
5. Step 5: Solve for x
   x = 718,041,495.27/30,610.82
6. Step 6: Final answer
   x = 23,457.11