Finding the Fourth Proportional to 22,670.28, 31,280.18 and 13,234.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,670.28 : 31,280.18 = 13,234.59 : x
2. Step 2: Convert to fraction form
   22,670.28/31,280.18 = 13,234.59/x
3. Step 3: Cross multiply
   22,670.28x = 31,280.18 × 13,234.59
4. Step 4: Simplify right side
   22,670.28x = 413,980,291.25
5. Step 5: Solve for x
   x = 413,980,291.25/22,670.28
6. Step 6: Final answer
   x = 18,260.93