Finding the Fourth Proportional to 56,871.02, 78,482.28 and 31,377.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,871.02 : 78,482.28 = 31,377.38 : x
2. Step 2: Convert to fraction form
   56,871.02/78,482.28 = 31,377.38/x
3. Step 3: Cross multiply
   56,871.02x = 78,482.28 × 31,377.38
4. Step 4: Simplify right side
   56,871.02x = 2,462,568,519.03
5. Step 5: Solve for x
   x = 2,462,568,519.03/56,871.02
6. Step 6: Final answer
   x = 43,300.94