Finding the Fourth Proportional to 21,532.72, 29,715.68 and 12,101.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,532.72 : 29,715.68 = 12,101.04 : x
2. Step 2: Convert to fraction form
   21,532.72/29,715.68 = 12,101.04/x
3. Step 3: Cross multiply
   21,532.72x = 29,715.68 × 12,101.04
4. Step 4: Simplify right side
   21,532.72x = 359,590,632.31
5. Step 5: Solve for x
   x = 359,590,632.31/21,532.72
6. Step 6: Final answer
   x = 16,699.73