Finding the Fourth Proportional to 23,127.47, 31,915.69 and 13,055.70

Step by Step Solution

1. Step 1: Write the proportion equation
   23,127.47 : 31,915.69 = 13,055.70 : x
2. Step 2: Convert to fraction form
   23,127.47/31,915.69 = 13,055.70/x
3. Step 3: Cross multiply
   23,127.47x = 31,915.69 × 13,055.70
4. Step 4: Simplify right side
   23,127.47x = 416,681,581.45
5. Step 5: Solve for x
   x = 416,681,581.45/23,127.47
6. Step 6: Final answer
   x = 18,016.74