Finding the Fourth Proportional to 30,810.77, 42,518.86 and 16,663.61

Step by Step Solution

1. Step 1: Write the proportion equation
   30,810.77 : 42,518.86 = 16,663.61 : x
2. Step 2: Convert to fraction form
   30,810.77/42,518.86 = 16,663.61/x
3. Step 3: Cross multiply
   30,810.77x = 42,518.86 × 16,663.61
4. Step 4: Simplify right side
   30,810.77x = 708,517,446.43
5. Step 5: Solve for x
   x = 708,517,446.43/30,810.77
6. Step 6: Final answer
   x = 22,995.78