Finding the Fourth Proportional to 30,853.55, 42,577.83 and 16,706.43

Step by Step Solution

1. Step 1: Write the proportion equation
   30,853.55 : 42,577.83 = 16,706.43 : x
2. Step 2: Convert to fraction form
   30,853.55/42,577.83 = 16,706.43/x
3. Step 3: Cross multiply
   30,853.55x = 42,577.83 × 16,706.43
4. Step 4: Simplify right side
   30,853.55x = 711,323,536.45
5. Step 5: Solve for x
   x = 711,323,536.45/30,853.55
6. Step 6: Final answer
   x = 23,054.84