Finding the Fourth Proportional to 28,338.85, 42,449.91 and 16,623.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,338.85 : 42,449.91 = 16,623.82 : x
2. Step 2: Convert to fraction form
   28,338.85/42,449.91 = 16,623.82/x
3. Step 3: Cross multiply
   28,338.85x = 42,449.91 × 16,623.82
4. Step 4: Simplify right side
   28,338.85x = 705,679,662.86
5. Step 5: Solve for x
   x = 705,679,662.86/28,338.85
6. Step 6: Final answer
   x = 24,901.49