Finding the Fourth Proportional to 30,558.03, 42,167.90 and 16,945.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,558.03 : 42,167.90 = 16,945.06 : x
2. Step 2: Convert to fraction form
   30,558.03/42,167.90 = 16,945.06/x
3. Step 3: Cross multiply
   30,558.03x = 42,167.90 × 16,945.06
4. Step 4: Simplify right side
   30,558.03x = 714,537,300.01
5. Step 5: Solve for x
   x = 714,537,300.01/30,558.03
6. Step 6: Final answer
   x = 23,382.96