Finding the Fourth Proportional to 21,784.17, 32,665.32 and 10,105.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21,784.17 : 32,665.32 = 10,105.59 : x
2. Step 2: Convert to fraction form
   21,784.17/32,665.32 = 10,105.59/x
3. Step 3: Cross multiply
   21,784.17x = 32,665.32 × 10,105.59
4. Step 4: Simplify right side
   21,784.17x = 330,102,331.14
5. Step 5: Solve for x
   x = 330,102,331.14/21,784.17
6. Step 6: Final answer
   x = 15,153.31