Finding the Fourth Proportional to 22,985.91, 31,716.72 and 13,556.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,985.91 : 31,716.72 = 13,556.34 : x
2. Step 2: Convert to fraction form
   22,985.91/31,716.72 = 13,556.34/x
3. Step 3: Cross multiply
   22,985.91x = 31,716.72 × 13,556.34
4. Step 4: Simplify right side
   22,985.91x = 429,962,640.00
5. Step 5: Solve for x
   x = 429,962,640.00/22,985.91
6. Step 6: Final answer
   x = 18,705.49