Finding the Fourth Proportional to 21,211.04, 31,796.76 and 10,112.24

Step by Step Solution

1. Step 1: Write the proportion equation
   21,211.04 : 31,796.76 = 10,112.24 : x
2. Step 2: Convert to fraction form
   21,211.04/31,796.76 = 10,112.24/x
3. Step 3: Cross multiply
   21,211.04x = 31,796.76 × 10,112.24
4. Step 4: Simplify right side
   21,211.04x = 321,536,468.34
5. Step 5: Solve for x
   x = 321,536,468.34/21,211.04
6. Step 6: Final answer
   x = 15,158.92