Finding the Fourth Proportional to 22,085.09, 30,478.23 and 12,655.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,085.09 : 30,478.23 = 12,655.47 : x
2. Step 2: Convert to fraction form
   22,085.09/30,478.23 = 12,655.47/x
3. Step 3: Cross multiply
   22,085.09x = 30,478.23 × 12,655.47
4. Step 4: Simplify right side
   22,085.09x = 385,716,325.42
5. Step 5: Solve for x
   x = 385,716,325.42/22,085.09
6. Step 6: Final answer
   x = 17,465.01