Finding the Fourth Proportional to 23,189.88, 31,977.82 and 13,756.62

Step by Step Solution

1. Step 1: Write the proportion equation
   23,189.88 : 31,977.82 = 13,756.62 : x
2. Step 2: Convert to fraction form
   23,189.88/31,977.82 = 13,756.62/x
3. Step 3: Cross multiply
   23,189.88x = 31,977.82 × 13,756.62
4. Step 4: Simplify right side
   23,189.88x = 439,906,718.17
5. Step 5: Solve for x
   x = 439,906,718.17/23,189.88
6. Step 6: Final answer
   x = 18,969.77