Finding the Fourth Proportional to 30,847.28, 42,569.33 and 16,700.09

Step by Step Solution

1. Step 1: Write the proportion equation
   30,847.28 : 42,569.33 = 16,700.09 : x
2. Step 2: Convert to fraction form
   30,847.28/42,569.33 = 16,700.09/x
3. Step 3: Cross multiply
   30,847.28x = 42,569.33 × 16,700.09
4. Step 4: Simplify right side
   30,847.28x = 710,911,345.89
5. Step 5: Solve for x
   x = 710,911,345.89/30,847.28
6. Step 6: Final answer
   x = 23,046.16