Finding the Fourth Proportional to 22,491.37, 31,037.93 and 12,419.81

Step by Step Solution

1. Step 1: Write the proportion equation
   22,491.37 : 31,037.93 = 12,419.81 : x
2. Step 2: Convert to fraction form
   22,491.37/31,037.93 = 12,419.81/x
3. Step 3: Cross multiply
   22,491.37x = 31,037.93 × 12,419.81
4. Step 4: Simplify right side
   22,491.37x = 385,484,976.10
5. Step 5: Solve for x
   x = 385,484,976.10/22,491.37
6. Step 6: Final answer
   x = 17,139.24