Finding the Fourth Proportional to 30,823.72, 42,536.74 and 16,676.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,823.72 : 42,536.74 = 16,676.52 : x
2. Step 2: Convert to fraction form
   30,823.72/42,536.74 = 16,676.52/x
3. Step 3: Cross multiply
   30,823.72x = 42,536.74 × 16,676.52
4. Step 4: Simplify right side
   30,823.72x = 709,364,795.34
5. Step 5: Solve for x
   x = 709,364,795.34/30,823.72
6. Step 6: Final answer
   x = 23,013.60