Finding the Fourth Proportional to 58,622.00, 80,835.30 and 57,391.88

Step by Step Solution

1. Step 1: Write the proportion equation
   58,622.00 : 80,835.30 = 57,391.88 : x
2. Step 2: Convert to fraction form
   58,622.00/80,835.30 = 57,391.88/x
3. Step 3: Cross multiply
   58,622.00x = 80,835.30 × 57,391.88
4. Step 4: Simplify right side
   58,622.00x = 4,639,289,433.19
5. Step 5: Solve for x
   x = 4,639,289,433.19/58,622.00
6. Step 6: Final answer
   x = 79,139.06