Finding the Fourth Proportional to 58,648.27, 80,934.75 and 31,790.67

Step by Step Solution

1. Step 1: Write the proportion equation
   58,648.27 : 80,934.75 = 31,790.67 : x
2. Step 2: Convert to fraction form
   58,648.27/80,934.75 = 31,790.67/x
3. Step 3: Cross multiply
   58,648.27x = 80,934.75 × 31,790.67
4. Step 4: Simplify right side
   58,648.27x = 2,572,969,928.78
5. Step 5: Solve for x
   x = 2,572,969,928.78/58,648.27
6. Step 6: Final answer
   x = 43,871.20