Finding the Fourth Proportional to 22,686.64, 31,308.24 and 13,735.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,686.64 : 31,308.24 = 13,735.78 : x
2. Step 2: Convert to fraction form
   22,686.64/31,308.24 = 13,735.78/x
3. Step 3: Cross multiply
   22,686.64x = 31,308.24 × 13,735.78
4. Step 4: Simplify right side
   22,686.64x = 430,043,096.83
5. Step 5: Solve for x
   x = 430,043,096.83/22,686.64
6. Step 6: Final answer
   x = 18,955.79