Finding the Fourth Proportional to 22,777.05, 31,435.07 and 13,345.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,777.05 : 31,435.07 = 13,345.62 : x
2. Step 2: Convert to fraction form
   22,777.05/31,435.07 = 13,345.62/x
3. Step 3: Cross multiply
   22,777.05x = 31,435.07 × 13,345.62
4. Step 4: Simplify right side
   22,777.05x = 419,520,498.89
5. Step 5: Solve for x
   x = 419,520,498.89/22,777.05
6. Step 6: Final answer
   x = 18,418.56