Finding the Fourth Proportional to 39,996.48, 55,200.96 and 23,238.72

Step by Step Solution

1. Step 1: Write the proportion equation
   39,996.48 : 55,200.96 = 23,238.72 : x
2. Step 2: Convert to fraction form
   39,996.48/55,200.96 = 23,238.72/x
3. Step 3: Cross multiply
   39,996.48x = 55,200.96 × 23,238.72
4. Step 4: Simplify right side
   39,996.48x = 1,282,799,653.17
5. Step 5: Solve for x
   x = 1,282,799,653.17/39,996.48
6. Step 6: Final answer
   x = 32,072.81