Finding the Fourth Proportional to 30,072.50, 41,499.46 and 16,642.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,072.50 : 41,499.46 = 16,642.98 : x
2. Step 2: Convert to fraction form
   30,072.50/41,499.46 = 16,642.98/x
3. Step 3: Cross multiply
   30,072.50x = 41,499.46 × 16,642.98
4. Step 4: Simplify right side
   30,072.50x = 690,674,682.79
5. Step 5: Solve for x
   x = 690,674,682.79/30,072.50
6. Step 6: Final answer
   x = 22,966.99