Finding the Fourth Proportional to 56,949.82, 78,590.36 and 31,456.07

Step by Step Solution

1. Step 1: Write the proportion equation
   56,949.82 : 78,590.36 = 31,456.07 : x
2. Step 2: Convert to fraction form
   56,949.82/78,590.36 = 31,456.07/x
3. Step 3: Cross multiply
   56,949.82x = 78,590.36 × 31,456.07
4. Step 4: Simplify right side
   56,949.82x = 2,472,143,414.77
5. Step 5: Solve for x
   x = 2,472,143,414.77/56,949.82
6. Step 6: Final answer
   x = 43,409.15