Finding the Fourth Proportional to 22,345.02, 30,838.86 and 12,788.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,345.02 : 30,838.86 = 12,788.46 : x
2. Step 2: Convert to fraction form
   22,345.02/30,838.86 = 12,788.46/x
3. Step 3: Cross multiply
   22,345.02x = 30,838.86 × 12,788.46
4. Step 4: Simplify right side
   22,345.02x = 394,381,527.56
5. Step 5: Solve for x
   x = 394,381,527.56/22,345.02
6. Step 6: Final answer
   x = 17,649.64