Finding the Fourth Proportional to 55,371.81, 76,412.43 and 31,498.42

Step by Step Solution

1. Step 1: Write the proportion equation
   55,371.81 : 76,412.43 = 31,498.42 : x
2. Step 2: Convert to fraction form
   55,371.81/76,412.43 = 31,498.42/x
3. Step 3: Cross multiply
   55,371.81x = 76,412.43 × 31,498.42
4. Step 4: Simplify right side
   55,371.81x = 2,406,870,813.36
5. Step 5: Solve for x
   x = 2,406,870,813.36/55,371.81
6. Step 6: Final answer
   x = 43,467.44