Finding the Fourth Proportional to 39,476.08, 59,208.72 and 13,180.24

Step by Step Solution

1. Step 1: Write the proportion equation
   39,476.08 : 59,208.72 = 13,180.24 : x
2. Step 2: Convert to fraction form
   39,476.08/59,208.72 = 13,180.24/x
3. Step 3: Cross multiply
   39,476.08x = 59,208.72 × 13,180.24
4. Step 4: Simplify right side
   39,476.08x = 780,385,139.69
5. Step 5: Solve for x
   x = 780,385,139.69/39,476.08
6. Step 6: Final answer
   x = 19,768.56