Finding the Fourth Proportional to 22,560.24, 31,134.72 and 13,607.19

Step by Step Solution

1. Step 1: Write the proportion equation
   22,560.24 : 31,134.72 = 13,607.19 : x
2. Step 2: Convert to fraction form
   22,560.24/31,134.72 = 13,607.19/x
3. Step 3: Cross multiply
   22,560.24x = 31,134.72 × 13,607.19
4. Step 4: Simplify right side
   22,560.24x = 423,656,050.64
5. Step 5: Solve for x
   x = 423,656,050.64/22,560.24
6. Step 6: Final answer
   x = 18,778.88