Finding the Fourth Proportional to 30,877.58, 42,611.16 and 16,730.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,877.58 : 42,611.16 = 16,730.38 : x
2. Step 2: Convert to fraction form
   30,877.58/42,611.16 = 16,730.38/x
3. Step 3: Cross multiply
   30,877.58x = 42,611.16 × 16,730.38
4. Step 4: Simplify right side
   30,877.58x = 712,900,899.04
5. Step 5: Solve for x
   x = 712,900,899.04/30,877.58
6. Step 6: Final answer
   x = 23,087.98