Finding the Fourth Proportional to 23,099.09, 31,884.93 and 13,667.63

Step by Step Solution

1. Step 1: Write the proportion equation
   23,099.09 : 31,884.93 = 13,667.63 : x
2. Step 2: Convert to fraction form
   23,099.09/31,884.93 = 13,667.63/x
3. Step 3: Cross multiply
   23,099.09x = 31,884.93 × 13,667.63
4. Step 4: Simplify right side
   23,099.09x = 435,791,266.39
5. Step 5: Solve for x
   x = 435,791,266.39/23,099.09
6. Step 6: Final answer
   x = 18,866.17