Finding the Fourth Proportional to 23,765.55, 32,797.15 and 13,155.87

Step by Step Solution

1. Step 1: Write the proportion equation
   23,765.55 : 32,797.15 = 13,155.87 : x
2. Step 2: Convert to fraction form
   23,765.55/32,797.15 = 13,155.87/x
3. Step 3: Cross multiply
   23,765.55x = 32,797.15 × 13,155.87
4. Step 4: Simplify right side
   23,765.55x = 431,475,076.63
5. Step 5: Solve for x
   x = 431,475,076.63/23,765.55
6. Step 6: Final answer
   x = 18,155.48