Finding the Fourth Proportional to 30,887.05, 42,622.98 and 16,739.59

Step by Step Solution

1. Step 1: Write the proportion equation
   30,887.05 : 42,622.98 = 16,739.59 : x
2. Step 2: Convert to fraction form
   30,887.05/42,622.98 = 16,739.59/x
3. Step 3: Cross multiply
   30,887.05x = 42,622.98 × 16,739.59
4. Step 4: Simplify right side
   30,887.05x = 713,491,209.78
5. Step 5: Solve for x
   x = 713,491,209.78/30,887.05
6. Step 6: Final answer
   x = 23,100.01