Finding the Fourth Proportional to 23,931.24, 33,023.52 and 13,320.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,931.24 : 33,023.52 = 13,320.60 : x
2. Step 2: Convert to fraction form
   23,931.24/33,023.52 = 13,320.60/x
3. Step 3: Cross multiply
   23,931.24x = 33,023.52 × 13,320.60
4. Step 4: Simplify right side
   23,931.24x = 439,893,100.51
5. Step 5: Solve for x
   x = 439,893,100.51/23,931.24
6. Step 6: Final answer
   x = 18,381.54