Finding the Fourth Proportional to 58,390.54, 80,578.94 and 31,533.05

Step by Step Solution

1. Step 1: Write the proportion equation
   58,390.54 : 80,578.94 = 31,533.05 : x
2. Step 2: Convert to fraction form
   58,390.54/80,578.94 = 31,533.05/x
3. Step 3: Cross multiply
   58,390.54x = 80,578.94 × 31,533.05
4. Step 4: Simplify right side
   58,390.54x = 2,540,899,439.82
5. Step 5: Solve for x
   x = 2,540,899,439.82/58,390.54
6. Step 6: Final answer
   x = 43,515.60