Finding the Fourth Proportional to 55,821.82, 77,012.37 and 31,617.22

Step by Step Solution

1. Step 1: Write the proportion equation
   55,821.82 : 77,012.37 = 31,617.22 : x
2. Step 2: Convert to fraction form
   55,821.82/77,012.37 = 31,617.22/x
3. Step 3: Cross multiply
   55,821.82x = 77,012.37 × 31,617.22
4. Step 4: Simplify right side
   55,821.82x = 2,434,917,045.01
5. Step 5: Solve for x
   x = 2,434,917,045.01/55,821.82
6. Step 6: Final answer
   x = 43,619.45