Finding the Fourth Proportional to 22,703.18, 31,330.42 and 12,767.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,703.18 : 31,330.42 = 12,767.18 : x
2. Step 2: Convert to fraction form
   22,703.18/31,330.42 = 12,767.18/x
3. Step 3: Cross multiply
   22,703.18x = 31,330.42 × 12,767.18
4. Step 4: Simplify right side
   22,703.18x = 400,001,111.62
5. Step 5: Solve for x
   x = 400,001,111.62/22,703.18
6. Step 6: Final answer
   x = 17,618.73