Finding the Fourth Proportional to 65,628, 98,442.72 and 16,380

Step by Step Solution

1. Step 1: Write the proportion equation
   65,628 : 98,442.72 = 16,380 : x
2. Step 2: Convert to fraction form
   65,628/98,442.72 = 16,380/x
3. Step 3: Cross multiply
   65,628x = 98,442.72 × 16,380
4. Step 4: Simplify right side
   65,628x = 1,612,491,753.60
5. Step 5: Solve for x
   x = 1,612,491,753.60/65,628
6. Step 6: Final answer
   x = 24,570.18