Finding the Fourth Proportional to 22,074.76, 30,457.02 and 12,642.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,074.76 : 30,457.02 = 12,642.76 : x
2. Step 2: Convert to fraction form
   22,074.76/30,457.02 = 12,642.76/x
3. Step 3: Cross multiply
   22,074.76x = 30,457.02 × 12,642.76
4. Step 4: Simplify right side
   22,074.76x = 385,060,794.18
5. Step 5: Solve for x
   x = 385,060,794.18/22,074.76
6. Step 6: Final answer
   x = 17,443.49