Finding the Fourth Proportional to 58,647.69, 80,933.94 and 31,790.16

Step by Step Solution

1. Step 1: Write the proportion equation
   58,647.69 : 80,933.94 = 31,790.16 : x
2. Step 2: Convert to fraction form
   58,647.69/80,933.94 = 31,790.16/x
3. Step 3: Cross multiply
   58,647.69x = 80,933.94 × 31,790.16
4. Step 4: Simplify right side
   58,647.69x = 2,572,902,902.03
5. Step 5: Solve for x
   x = 2,572,902,902.03/58,647.69
6. Step 6: Final answer
   x = 43,870.49