Finding the Fourth Proportional to 30,803.69, 42,509.06 and 16,656.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,803.69 : 42,509.06 = 16,656.50 : x
2. Step 2: Convert to fraction form
   30,803.69/42,509.06 = 16,656.50/x
3. Step 3: Cross multiply
   30,803.69x = 42,509.06 × 16,656.50
4. Step 4: Simplify right side
   30,803.69x = 708,052,157.89
5. Step 5: Solve for x
   x = 708,052,157.89/30,803.69
6. Step 6: Final answer
   x = 22,985.95