Finding the Fourth Proportional to 21,767.39, 32,640.15 and 10,088.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,767.39 : 32,640.15 = 10,088.81 : x
2. Step 2: Convert to fraction form
   21,767.39/32,640.15 = 10,088.81/x
3. Step 3: Cross multiply
   21,767.39x = 32,640.15 × 10,088.81
4. Step 4: Simplify right side
   21,767.39x = 329,300,212.00
5. Step 5: Solve for x
   x = 329,300,212.00/21,767.39
6. Step 6: Final answer
   x = 15,128.14