Finding the Fourth Proportional to 58,636.40, 80,917.31 and 31,778.69

Step by Step Solution

1. Step 1: Write the proportion equation
   58,636.40 : 80,917.31 = 31,778.69 : x
2. Step 2: Convert to fraction form
   58,636.40/80,917.31 = 31,778.69/x
3. Step 3: Cross multiply
   58,636.40x = 80,917.31 × 31,778.69
4. Step 4: Simplify right side
   58,636.40x = 2,571,445,784.98
5. Step 5: Solve for x
   x = 2,571,445,784.98/58,636.40
6. Step 6: Final answer
   x = 43,854.09