Finding the Fourth Proportional to 55,289.82, 76,301.91 and 31,417.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,289.82 : 76,301.91 = 31,417.50 : x
2. Step 2: Convert to fraction form
   55,289.82/76,301.91 = 31,417.50/x
3. Step 3: Cross multiply
   55,289.82x = 76,301.91 × 31,417.50
4. Step 4: Simplify right side
   55,289.82x = 2,397,215,257.43
5. Step 5: Solve for x
   x = 2,397,215,257.43/55,289.82
6. Step 6: Final answer
   x = 43,357.26