Finding the Fourth Proportional to 22,765.37, 31,410.99 and 13,686.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,765.37 : 31,410.99 = 13,686.59 : x
2. Step 2: Convert to fraction form
   22,765.37/31,410.99 = 13,686.59/x
3. Step 3: Cross multiply
   22,765.37x = 31,410.99 × 13,686.59
4. Step 4: Simplify right side
   22,765.37x = 429,909,243.46
5. Step 5: Solve for x
   x = 429,909,243.46/22,765.37
6. Step 6: Final answer
   x = 18,884.35