Finding the Fourth Proportional to 30,945.51, 42,704.86 and 16,798.35

Step by Step Solution

1. Step 1: Write the proportion equation
   30,945.51 : 42,704.86 = 16,798.35 : x
2. Step 2: Convert to fraction form
   30,945.51/42,704.86 = 16,798.35/x
3. Step 3: Cross multiply
   30,945.51x = 42,704.86 × 16,798.35
4. Step 4: Simplify right side
   30,945.51x = 717,371,184.98
5. Step 5: Solve for x
   x = 717,371,184.98/30,945.51
6. Step 6: Final answer
   x = 23,181.75