Finding the Fourth Proportional to 23,721.87, 32,735.95 and 13,111.57

Step by Step Solution

1. Step 1: Write the proportion equation
   23,721.87 : 32,735.95 = 13,111.57 : x
2. Step 2: Convert to fraction form
   23,721.87/32,735.95 = 13,111.57/x
3. Step 3: Cross multiply
   23,721.87x = 32,735.95 × 13,111.57
4. Step 4: Simplify right side
   23,721.87x = 429,219,699.94
5. Step 5: Solve for x
   x = 429,219,699.94/23,721.87
6. Step 6: Final answer
   x = 18,093.84