Finding the Fourth Proportional to 22,693.32, 31,317.06 and 12,757.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,693.32 : 31,317.06 = 12,757.32 : x
2. Step 2: Convert to fraction form
   22,693.32/31,317.06 = 12,757.32/x
3. Step 3: Cross multiply
   22,693.32x = 31,317.06 × 12,757.32
4. Step 4: Simplify right side
   22,693.32x = 399,521,755.88
5. Step 5: Solve for x
   x = 399,521,755.88/22,693.32
6. Step 6: Final answer
   x = 17,605.26