Finding the Fourth Proportional to 23,062.34, 31,829.04 and 12,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,062.34 : 31,829.04 = 12,992.72 : x
2. Step 2: Convert to fraction form
   23,062.34/31,829.04 = 12,992.72/x
3. Step 3: Cross multiply
   23,062.34x = 31,829.04 × 12,992.72
4. Step 4: Simplify right side
   23,062.34x = 413,545,804.59
5. Step 5: Solve for x
   x = 413,545,804.59/23,062.34
6. Step 6: Final answer
   x = 17,931.65