Finding the Fourth Proportional to 22,683.06, 31,302.72 and 12,612.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,683.06 : 31,302.72 = 12,612.42 : x
2. Step 2: Convert to fraction form
   22,683.06/31,302.72 = 12,612.42/x
3. Step 3: Cross multiply
   22,683.06x = 31,302.72 × 12,612.42
4. Step 4: Simplify right side
   22,683.06x = 394,803,051.78
5. Step 5: Solve for x
   x = 394,803,051.78/22,683.06
6. Step 6: Final answer
   x = 17,405.19