Finding the Fourth Proportional to 22,610.88, 31,196.58 and 13,177.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,610.88 : 31,196.58 = 13,177.64 : x
2. Step 2: Convert to fraction form
   22,610.88/31,196.58 = 13,177.64/x
3. Step 3: Cross multiply
   22,610.88x = 31,196.58 × 13,177.64
4. Step 4: Simplify right side
   22,610.88x = 411,097,300.47
5. Step 5: Solve for x
   x = 411,097,300.47/22,610.88
6. Step 6: Final answer
   x = 18,181.39