Finding the Fourth Proportional to 30,827.18, 42,541.50 and 16,680.02

Step by Step Solution

1. Step 1: Write the proportion equation
   30,827.18 : 42,541.50 = 16,680.02 : x
2. Step 2: Convert to fraction form
   30,827.18/42,541.50 = 16,680.02/x
3. Step 3: Cross multiply
   30,827.18x = 42,541.50 × 16,680.02
4. Step 4: Simplify right side
   30,827.18x = 709,593,070.83
5. Step 5: Solve for x
   x = 709,593,070.83/30,827.18
6. Step 6: Final answer
   x = 23,018.42