Finding the Fourth Proportional to 22,632.59, 31,233.18 and 13,686.07

Step by Step Solution

1. Step 1: Write the proportion equation
   22,632.59 : 31,233.18 = 13,686.07 : x
2. Step 2: Convert to fraction form
   22,632.59/31,233.18 = 13,686.07/x
3. Step 3: Cross multiply
   22,632.59x = 31,233.18 × 13,686.07
4. Step 4: Simplify right side
   22,632.59x = 427,459,453.59
5. Step 5: Solve for x
   x = 427,459,453.59/22,632.59
6. Step 6: Final answer
   x = 18,886.90