Finding the Fourth Proportional to 22,193.96, 30,628.57 and 12,762.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,193.96 : 30,628.57 = 12,762.52 : x
2. Step 2: Convert to fraction form
   22,193.96/30,628.57 = 12,762.52/x
3. Step 3: Cross multiply
   22,193.96x = 30,628.57 × 12,762.52
4. Step 4: Simplify right side
   22,193.96x = 390,897,628.72
5. Step 5: Solve for x
   x = 390,897,628.72/22,193.96
6. Step 6: Final answer
   x = 17,612.80