Finding the Fourth Proportional to 21,101.44, 29,100.72 and 18,116.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,101.44 : 29,100.72 = 18,116.32 : x
2. Step 2: Convert to fraction form
   21,101.44/29,100.72 = 18,116.32/x
3. Step 3: Cross multiply
   21,101.44x = 29,100.72 × 18,116.32
4. Step 4: Simplify right side
   21,101.44x = 527,197,955.75
5. Step 5: Solve for x
   x = 527,197,955.75/21,101.44
6. Step 6: Final answer
   x = 24,983.98