Finding the Fourth Proportional to 21,034.08, 31,556.16 and 7,182.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,034.08 : 31,556.16 = 7,182.72 : x
2. Step 2: Convert to fraction form
   21,034.08/31,556.16 = 7,182.72/x
3. Step 3: Cross multiply
   21,034.08x = 31,556.16 × 7,182.72
4. Step 4: Simplify right side
   21,034.08x = 226,659,061.56
5. Step 5: Solve for x
   x = 226,659,061.56/21,034.08
6. Step 6: Final answer
   x = 10,775.80