Finding the Fourth Proportional to 21,303.72, 31,933.98 and 10,194.12

Step by Step Solution

1. Step 1: Write the proportion equation
   21,303.72 : 31,933.98 = 10,194.12 : x
2. Step 2: Convert to fraction form
   21,303.72/31,933.98 = 10,194.12/x
3. Step 3: Cross multiply
   21,303.72x = 31,933.98 × 10,194.12
4. Step 4: Simplify right side
   21,303.72x = 325,538,824.20
5. Step 5: Solve for x
   x = 325,538,824.20/21,303.72
6. Step 6: Final answer
   x = 15,280.84