Finding the Fourth Proportional to 30,835.99, 42,553.69 and 16,688.84

Step by Step Solution

1. Step 1: Write the proportion equation
   30,835.99 : 42,553.69 = 16,688.84 : x
2. Step 2: Convert to fraction form
   30,835.99/42,553.69 = 16,688.84/x
3. Step 3: Cross multiply
   30,835.99x = 42,553.69 × 16,688.84
4. Step 4: Simplify right side
   30,835.99x = 710,171,788.48
5. Step 5: Solve for x
   x = 710,171,788.48/30,835.99
6. Step 6: Final answer
   x = 23,030.62