Finding the Fourth Proportional to 14,100.63, 21,109.41 and 10,419.28

Step by Step Solution

1. Step 1: Write the proportion equation
   14,100.63 : 21,109.41 = 10,419.28 : x
2. Step 2: Convert to fraction form
   14,100.63/21,109.41 = 10,419.28/x
3. Step 3: Cross multiply
   14,100.63x = 21,109.41 × 10,419.28
4. Step 4: Simplify right side
   14,100.63x = 219,944,919.39
5. Step 5: Solve for x
   x = 219,944,919.39/14,100.63
6. Step 6: Final answer
   x = 15,598.23