Finding the Fourth Proportional to 23,603.16, 32,572.37 and 12,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,603.16 : 32,572.37 = 12,992.72 : x
2. Step 2: Convert to fraction form
   23,603.16/32,572.37 = 12,992.72/x
3. Step 3: Cross multiply
   23,603.16x = 32,572.37 × 12,992.72
4. Step 4: Simplify right side
   23,603.16x = 423,203,797.06
5. Step 5: Solve for x
   x = 423,203,797.06/23,603.16
6. Step 6: Final answer
   x = 17,929.96