Finding the Fourth Proportional to 30,575.55, 42,196.28 and 17,147.67

Step by Step Solution

1. Step 1: Write the proportion equation
   30,575.55 : 42,196.28 = 17,147.67 : x
2. Step 2: Convert to fraction form
   30,575.55/42,196.28 = 17,147.67/x
3. Step 3: Cross multiply
   30,575.55x = 42,196.28 × 17,147.67
4. Step 4: Simplify right side
   30,575.55x = 723,567,798.93
5. Step 5: Solve for x
   x = 723,567,798.93/30,575.55
6. Step 6: Final answer
   x = 23,664.92