Finding the Fourth Proportional to 23,978.16, 33,089.86 and 13,368.47

Step by Step Solution

1. Step 1: Write the proportion equation
   23,978.16 : 33,089.86 = 13,368.47 : x
2. Step 2: Convert to fraction form
   23,978.16/33,089.86 = 13,368.47/x
3. Step 3: Cross multiply
   23,978.16x = 33,089.86 × 13,368.47
4. Step 4: Simplify right side
   23,978.16x = 442,360,800.71
5. Step 5: Solve for x
   x = 442,360,800.71/23,978.16
6. Step 6: Final answer
   x = 18,448.49