Finding the Fourth Proportional to 58,355.64, 80,418.42 and 42,414.84

Step by Step Solution

1. Step 1: Write the proportion equation
   58,355.64 : 80,418.42 = 42,414.84 : x
2. Step 2: Convert to fraction form
   58,355.64/80,418.42 = 42,414.84/x
3. Step 3: Cross multiply
   58,355.64x = 80,418.42 × 42,414.84
4. Step 4: Simplify right side
   58,355.64x = 3,410,934,417.35
5. Step 5: Solve for x
   x = 3,410,934,417.35/58,355.64
6. Step 6: Final answer
   x = 58,450.81