Finding the Fourth Proportional to 58,648.37, 80,934.47 and 31,790.79

Step by Step Solution

1. Step 1: Write the proportion equation
   58,648.37 : 80,934.47 = 31,790.79 : x
2. Step 2: Convert to fraction form
   58,648.37/80,934.47 = 31,790.79/x
3. Step 3: Cross multiply
   58,648.37x = 80,934.47 × 31,790.79
4. Step 4: Simplify right side
   58,648.37x = 2,572,970,580.58
5. Step 5: Solve for x
   x = 2,572,970,580.58/58,648.37
6. Step 6: Final answer
   x = 43,871.14