Finding the Fourth Proportional to 23,173.11, 31,978.67 and 12,562.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,173.11 : 31,978.67 = 12,562.56 : x
2. Step 2: Convert to fraction form
   23,173.11/31,978.67 = 12,562.56/x
3. Step 3: Cross multiply
   23,173.11x = 31,978.67 × 12,562.56
4. Step 4: Simplify right side
   23,173.11x = 401,733,897.78
5. Step 5: Solve for x
   x = 401,733,897.78/23,173.11
6. Step 6: Final answer
   x = 17,336.21