Finding the Fourth Proportional to 23,131.50, 31,922.88 and 13,056.26

Step by Step Solution

1. Step 1: Write the proportion equation
   23,131.50 : 31,922.88 = 13,056.26 : x
2. Step 2: Convert to fraction form
   23,131.50/31,922.88 = 13,056.26/x
3. Step 3: Cross multiply
   23,131.50x = 31,922.88 × 13,056.26
4. Step 4: Simplify right side
   23,131.50x = 416,793,421.23
5. Step 5: Solve for x
   x = 416,793,421.23/23,131.50
6. Step 6: Final answer
   x = 18,018.43