Finding the Fourth Proportional to 55,292.82, 82,963.73 and 28,991.31

Step by Step Solution

1. Step 1: Write the proportion equation
   55,292.82 : 82,963.73 = 28,991.31 : x
2. Step 2: Convert to fraction form
   55,292.82/82,963.73 = 28,991.31/x
3. Step 3: Cross multiply
   55,292.82x = 82,963.73 × 28,991.31
4. Step 4: Simplify right side
   55,292.82x = 2,405,227,215.19
5. Step 5: Solve for x
   x = 2,405,227,215.19/55,292.82
6. Step 6: Final answer
   x = 43,499.81