Finding the Fourth Proportional to 35,976.54, 53,962.76 and 13,789.02

Step by Step Solution

1. Step 1: Write the proportion equation
   35,976.54 : 53,962.76 = 13,789.02 : x
2. Step 2: Convert to fraction form
   35,976.54/53,962.76 = 13,789.02/x
3. Step 3: Cross multiply
   35,976.54x = 53,962.76 × 13,789.02
4. Step 4: Simplify right side
   35,976.54x = 744,093,576.90
5. Step 5: Solve for x
   x = 744,093,576.90/35,976.54
6. Step 6: Final answer
   x = 20,682.74