Finding the Fourth Proportional to 23,766.89, 32,788.72 and 13,689.95

Step by Step Solution

1. Step 1: Write the proportion equation
   23,766.89 : 32,788.72 = 13,689.95 : x
2. Step 2: Convert to fraction form
   23,766.89/32,788.72 = 13,689.95/x
3. Step 3: Cross multiply
   23,766.89x = 32,788.72 × 13,689.95
4. Step 4: Simplify right side
   23,766.89x = 448,875,937.36
5. Step 5: Solve for x
   x = 448,875,937.36/23,766.89
6. Step 6: Final answer
   x = 18,886.61