Finding the Fourth Proportional to 23,113.35, 31,897.40 and 13,042.22

Step by Step Solution

1. Step 1: Write the proportion equation
   23,113.35 : 31,897.40 = 13,042.22 : x
2. Step 2: Convert to fraction form
   23,113.35/31,897.40 = 13,042.22/x
3. Step 3: Cross multiply
   23,113.35x = 31,897.40 × 13,042.22
4. Step 4: Simplify right side
   23,113.35x = 416,012,683.53
5. Step 5: Solve for x
   x = 416,012,683.53/23,113.35
6. Step 6: Final answer
   x = 17,998.81