Finding the Fourth Proportional to 23,603.82, 32,572.02 and 12,991.41

Step by Step Solution

1. Step 1: Write the proportion equation
   23,603.82 : 32,572.02 = 12,991.41 : x
2. Step 2: Convert to fraction form
   23,603.82/32,572.02 = 12,991.41/x
3. Step 3: Cross multiply
   23,603.82x = 32,572.02 × 12,991.41
4. Step 4: Simplify right side
   23,603.82x = 423,156,466.35
5. Step 5: Solve for x
   x = 423,156,466.35/23,603.82
6. Step 6: Final answer
   x = 17,927.46