Finding the Fourth Proportional to 30,980.74, 42,753.81 and 16,833.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,980.74 : 42,753.81 = 16,833.82 : x
2. Step 2: Convert to fraction form
   30,980.74/42,753.81 = 16,833.82/x
3. Step 3: Cross multiply
   30,980.74x = 42,753.81 × 16,833.82
4. Step 4: Simplify right side
   30,980.74x = 719,709,941.85
5. Step 5: Solve for x
   x = 719,709,941.85/30,980.74
6. Step 6: Final answer
   x = 23,230.88