Finding the Fourth Proportional to 22,993.30, 31,730.34 and 12,784.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,993.30 : 31,730.34 = 12,784.96 : x
2. Step 2: Convert to fraction form
   22,993.30/31,730.34 = 12,784.96/x
3. Step 3: Cross multiply
   22,993.30x = 31,730.34 × 12,784.96
4. Step 4: Simplify right side
   22,993.30x = 405,671,127.69
5. Step 5: Solve for x
   x = 405,671,127.69/22,993.30
6. Step 6: Final answer
   x = 17,643.01