Finding the Fourth Proportional to 76,553.36, 105,647.16 and 42,565.34

Step by Step Solution

1. Step 1: Write the proportion equation
   76,553.36 : 105,647.16 = 42,565.34 : x
2. Step 2: Convert to fraction form
   76,553.36/105,647.16 = 42,565.34/x
3. Step 3: Cross multiply
   76,553.36x = 105,647.16 × 42,565.34
4. Step 4: Simplify right side
   76,553.36x = 4,496,906,544.37
5. Step 5: Solve for x
   x = 4,496,906,544.37/76,553.36
6. Step 6: Final answer
   x = 58,742.12