Finding the Fourth Proportional to 28,333.53, 42,441.98 and 16,618.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,333.53 : 42,441.98 = 16,618.50 : x
2. Step 2: Convert to fraction form
   28,333.53/42,441.98 = 16,618.50/x
3. Step 3: Cross multiply
   28,333.53x = 42,441.98 × 16,618.50
4. Step 4: Simplify right side
   28,333.53x = 705,321,961.54
5. Step 5: Solve for x
   x = 705,321,961.54/28,333.53
6. Step 6: Final answer
   x = 24,893.54