Finding the Fourth Proportional to 14,116.76, 21,174.78 and 3,728.60

Step by Step Solution

1. Step 1: Write the proportion equation
   14,116.76 : 21,174.78 = 3,728.60 : x
2. Step 2: Convert to fraction form
   14,116.76/21,174.78 = 3,728.60/x
3. Step 3: Cross multiply
   14,116.76x = 21,174.78 × 3,728.60
4. Step 4: Simplify right side
   14,116.76x = 78,952,284.71
5. Step 5: Solve for x
   x = 78,952,284.71/14,116.76
6. Step 6: Final answer
   x = 5,592.80