Finding the Fourth Proportional to 30,758.72, 42,447.03 and 16,611.57

Step by Step Solution

1. Step 1: Write the proportion equation
   30,758.72 : 42,447.03 = 16,611.57 : x
2. Step 2: Convert to fraction form
   30,758.72/42,447.03 = 16,611.57/x
3. Step 3: Cross multiply
   30,758.72x = 42,447.03 × 16,611.57
4. Step 4: Simplify right side
   30,758.72x = 705,111,810.14
5. Step 5: Solve for x
   x = 705,111,810.14/30,758.72
6. Step 6: Final answer
   x = 22,923.96