Finding the Fourth Proportional to 22,457.68, 30,991.17 and 12,248.83

Step by Step Solution

1. Step 1: Write the proportion equation
   22,457.68 : 30,991.17 = 12,248.83 : x
2. Step 2: Convert to fraction form
   22,457.68/30,991.17 = 12,248.83/x
3. Step 3: Cross multiply
   22,457.68x = 30,991.17 × 12,248.83
4. Step 4: Simplify right side
   22,457.68x = 379,605,572.83
5. Step 5: Solve for x
   x = 379,605,572.83/22,457.68
6. Step 6: Final answer
   x = 16,903.15