Finding the Fourth Proportional to 30,803.25, 42,508.50 and 16,656.09

Step by Step Solution

1. Step 1: Write the proportion equation
   30,803.25 : 42,508.50 = 16,656.09 : x
2. Step 2: Convert to fraction form
   30,803.25/42,508.50 = 16,656.09/x
3. Step 3: Cross multiply
   30,803.25x = 42,508.50 × 16,656.09
4. Step 4: Simplify right side
   30,803.25x = 708,025,401.77
5. Step 5: Solve for x
   x = 708,025,401.77/30,803.25
6. Step 6: Final answer
   x = 22,985.41