Finding the Fourth Proportional to 37,977.98, 56,975.04 and 13,011.32

Step by Step Solution

1. Step 1: Write the proportion equation
   37,977.98 : 56,975.04 = 13,011.32 : x
2. Step 2: Convert to fraction form
   37,977.98/56,975.04 = 13,011.32/x
3. Step 3: Cross multiply
   37,977.98x = 56,975.04 × 13,011.32
4. Step 4: Simplify right side
   37,977.98x = 741,320,619.89
5. Step 5: Solve for x
   x = 741,320,619.89/37,977.98
6. Step 6: Final answer
   x = 19,519.75