Finding the Fourth Proportional to 22,592.89, 31,170.72 and 13,636.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,592.89 : 31,170.72 = 13,636.99 : x
2. Step 2: Convert to fraction form
   22,592.89/31,170.72 = 13,636.99/x
3. Step 3: Cross multiply
   22,592.89x = 31,170.72 × 13,636.99
4. Step 4: Simplify right side
   22,592.89x = 425,074,796.93
5. Step 5: Solve for x
   x = 425,074,796.93/22,592.89
6. Step 6: Final answer
   x = 18,814.54