Finding the Fourth Proportional to 36,776.88, 55,116.72 and 13,380.84

Step by Step Solution

1. Step 1: Write the proportion equation
   36,776.88 : 55,116.72 = 13,380.84 : x
2. Step 2: Convert to fraction form
   36,776.88/55,116.72 = 13,380.84/x
3. Step 3: Cross multiply
   36,776.88x = 55,116.72 × 13,380.84
4. Step 4: Simplify right side
   36,776.88x = 737,508,011.64
5. Step 5: Solve for x
   x = 737,508,011.64/36,776.88
6. Step 6: Final answer
   x = 20,053.58