Finding the Fourth Proportional to 58,056.72, 80,113.32 and 39,219.36

Step by Step Solution

1. Step 1: Write the proportion equation
   58,056.72 : 80,113.32 = 39,219.36 : x
2. Step 2: Convert to fraction form
   58,056.72/80,113.32 = 39,219.36/x
3. Step 3: Cross multiply
   58,056.72x = 80,113.32 × 39,219.36
4. Step 4: Simplify right side
   58,056.72x = 3,141,993,137.88
5. Step 5: Solve for x
   x = 3,141,993,137.88/58,056.72
6. Step 6: Final answer
   x = 54,119.37