Finding the Fourth Proportional to 22,510.01, 31,063.69 and 12,439.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,510.01 : 31,063.69 = 12,439.15 : x
2. Step 2: Convert to fraction form
   22,510.01/31,063.69 = 12,439.15/x
3. Step 3: Cross multiply
   22,510.01x = 31,063.69 × 12,439.15
4. Step 4: Simplify right side
   22,510.01x = 386,405,899.46
5. Step 5: Solve for x
   x = 386,405,899.46/22,510.01
6. Step 6: Final answer
   x = 17,165.96