Finding the Fourth Proportional to 58,566.78, 80,822.19 and 31,709.31

Step by Step Solution

1. Step 1: Write the proportion equation
   58,566.78 : 80,822.19 = 31,709.31 : x
2. Step 2: Convert to fraction form
   58,566.78/80,822.19 = 31,709.31/x
3. Step 3: Cross multiply
   58,566.78x = 80,822.19 × 31,709.31
4. Step 4: Simplify right side
   58,566.78x = 2,562,815,877.59
5. Step 5: Solve for x
   x = 2,562,815,877.59/58,566.78
6. Step 6: Final answer
   x = 43,758.87