Finding the Fourth Proportional to 40,677.33, 56,095.28 and 31,721.56

Step by Step Solution

1. Step 1: Write the proportion equation
   40,677.33 : 56,095.28 = 31,721.56 : x
2. Step 2: Convert to fraction form
   40,677.33/56,095.28 = 31,721.56/x
3. Step 3: Cross multiply
   40,677.33x = 56,095.28 × 31,721.56
4. Step 4: Simplify right side
   40,677.33x = 1,779,429,820.70
5. Step 5: Solve for x
   x = 1,779,429,820.70/40,677.33
6. Step 6: Final answer
   x = 43,745.00