Finding the Fourth Proportional to 23,709.93, 32,719.32 and 13,100.55

Step by Step Solution

1. Step 1: Write the proportion equation
   23,709.93 : 32,719.32 = 13,100.55 : x
2. Step 2: Convert to fraction form
   23,709.93/32,719.32 = 13,100.55/x
3. Step 3: Cross multiply
   23,709.93x = 32,719.32 × 13,100.55
4. Step 4: Simplify right side
   23,709.93x = 428,641,099.85
5. Step 5: Solve for x
   x = 428,641,099.85/23,709.93
6. Step 6: Final answer
   x = 18,078.55