Finding the Fourth Proportional to 22,107.90, 30,499.86 and 13,607.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,107.90 : 30,499.86 = 13,607.46 : x
2. Step 2: Convert to fraction form
   22,107.90/30,499.86 = 13,607.46/x
3. Step 3: Cross multiply
   22,107.90x = 30,499.86 × 13,607.46
4. Step 4: Simplify right side
   22,107.90x = 415,025,472.46
5. Step 5: Solve for x
   x = 415,025,472.46/22,107.90
6. Step 6: Final answer
   x = 18,772.73