Finding the Fourth Proportional to 58,435.37, 80,640.84 and 31,577.89

Step by Step Solution

1. Step 1: Write the proportion equation
   58,435.37 : 80,640.84 = 31,577.89 : x
2. Step 2: Convert to fraction form
   58,435.37/80,640.84 = 31,577.89/x
3. Step 3: Cross multiply
   58,435.37x = 80,640.84 × 31,577.89
4. Step 4: Simplify right side
   58,435.37x = 2,546,467,171.82
5. Step 5: Solve for x
   x = 2,546,467,171.82/58,435.37
6. Step 6: Final answer
   x = 43,577.50