Finding the Fourth Proportional to 15,869.03, 21,901.59 and 9,153.34

Step by Step Solution

1. Step 1: Write the proportion equation
   15,869.03 : 21,901.59 = 9,153.34 : x
2. Step 2: Convert to fraction form
   15,869.03/21,901.59 = 9,153.34/x
3. Step 3: Cross multiply
   15,869.03x = 21,901.59 × 9,153.34
4. Step 4: Simplify right side
   15,869.03x = 200,472,645.06
5. Step 5: Solve for x
   x = 200,472,645.06/15,869.03
6. Step 6: Final answer
   x = 12,632.95