Finding the Fourth Proportional to 39,638.27, 59,463.56 and 13,340.96

Step by Step Solution

1. Step 1: Write the proportion equation
   39,638.27 : 59,463.56 = 13,340.96 : x
2. Step 2: Convert to fraction form
   39,638.27/59,463.56 = 13,340.96/x
3. Step 3: Cross multiply
   39,638.27x = 59,463.56 × 13,340.96
4. Step 4: Simplify right side
   39,638.27x = 793,300,908.71
5. Step 5: Solve for x
   x = 793,300,908.71/39,638.27
6. Step 6: Final answer
   x = 20,013.51