Finding the Fourth Proportional to 23,978.86, 33,090.46 and 13,368.22

Step by Step Solution

1. Step 1: Write the proportion equation
   23,978.86 : 33,090.46 = 13,368.22 : x
2. Step 2: Convert to fraction form
   23,978.86/33,090.46 = 13,368.22/x
3. Step 3: Cross multiply
   23,978.86x = 33,090.46 × 13,368.22
4. Step 4: Simplify right side
   23,978.86x = 442,360,549.18
5. Step 5: Solve for x
   x = 442,360,549.18/23,978.86
6. Step 6: Final answer
   x = 18,447.94