Finding the Fourth Proportional to 30,887.49, 42,624.81 and 16,740.33

Step by Step Solution

1. Step 1: Write the proportion equation
   30,887.49 : 42,624.81 = 16,740.33 : x
2. Step 2: Convert to fraction form
   30,887.49/42,624.81 = 16,740.33/x
3. Step 3: Cross multiply
   30,887.49x = 42,624.81 × 16,740.33
4. Step 4: Simplify right side
   30,887.49x = 713,553,385.59
5. Step 5: Solve for x
   x = 713,553,385.59/30,887.49
6. Step 6: Final answer
   x = 23,101.70