Finding the Fourth Proportional to 76,551.83, 105,645.04 and 42,563.78

Step by Step Solution

1. Step 1: Write the proportion equation
   76,551.83 : 105,645.04 = 42,563.78 : x
2. Step 2: Convert to fraction form
   76,551.83/105,645.04 = 42,563.78/x
3. Step 3: Cross multiply
   76,551.83x = 105,645.04 × 42,563.78
4. Step 4: Simplify right side
   76,551.83x = 4,496,651,712.43
5. Step 5: Solve for x
   x = 4,496,651,712.43/76,551.83
6. Step 6: Final answer
   x = 58,739.96