Finding the Fourth Proportional to 23,090.23, 31,866.15 and 13,019.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,090.23 : 31,866.15 = 13,019.60 : x
2. Step 2: Convert to fraction form
   23,090.23/31,866.15 = 13,019.60/x
3. Step 3: Cross multiply
   23,090.23x = 31,866.15 × 13,019.60
4. Step 4: Simplify right side
   23,090.23x = 414,884,526.54
5. Step 5: Solve for x
   x = 414,884,526.54/23,090.23
6. Step 6: Final answer
   x = 17,967.97