Finding the Fourth Proportional to 30,846.35, 42,567.98 and 16,699.20

Step by Step Solution

1. Step 1: Write the proportion equation
   30,846.35 : 42,567.98 = 16,699.20 : x
2. Step 2: Convert to fraction form
   30,846.35/42,567.98 = 16,699.20/x
3. Step 3: Cross multiply
   30,846.35x = 42,567.98 × 16,699.20
4. Step 4: Simplify right side
   30,846.35x = 710,851,128.12
5. Step 5: Solve for x
   x = 710,851,128.12/30,846.35
6. Step 6: Final answer
   x = 23,044.90