Finding the Fourth Proportional to 58,057, 80,118.72 and 31,561

Step by Step Solution

1. Step 1: Write the proportion equation
   58,057 : 80,118.72 = 31,561 : x
2. Step 2: Convert to fraction form
   58,057/80,118.72 = 31,561/x
3. Step 3: Cross multiply
   58,057x = 80,118.72 × 31,561
4. Step 4: Simplify right side
   58,057x = 2,528,626,921.92
5. Step 5: Solve for x
   x = 2,528,626,921.92/58,057
6. Step 6: Final answer
   x = 43,554.21