Finding the Fourth Proportional to 30,902.76, 42,645.83 and 16,755.57

Step by Step Solution

1. Step 1: Write the proportion equation
   30,902.76 : 42,645.83 = 16,755.57 : x
2. Step 2: Convert to fraction form
   30,902.76/42,645.83 = 16,755.57/x
3. Step 3: Cross multiply
   30,902.76x = 42,645.83 × 16,755.57
4. Step 4: Simplify right side
   30,902.76x = 714,555,106.00
5. Step 5: Solve for x
   x = 714,555,106.00/30,902.76
6. Step 6: Final answer
   x = 23,122.70