Finding the Fourth Proportional to 21,945.42, 30,276.56 and 14,395.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,945.42 : 30,276.56 = 14,395.94 : x
2. Step 2: Convert to fraction form
   21,945.42/30,276.56 = 14,395.94/x
3. Step 3: Cross multiply
   21,945.42x = 30,276.56 × 14,395.94
4. Step 4: Simplify right side
   21,945.42x = 435,859,541.17
5. Step 5: Solve for x
   x = 435,859,541.17/21,945.42
6. Step 6: Final answer
   x = 19,861.07