Finding the Fourth Proportional to 76,773.56, 105,950.77 and 42,782.09

Step by Step Solution

1. Step 1: Write the proportion equation
   76,773.56 : 105,950.77 = 42,782.09 : x
2. Step 2: Convert to fraction form
   76,773.56/105,950.77 = 42,782.09/x
3. Step 3: Cross multiply
   76,773.56x = 105,950.77 × 42,782.09
4. Step 4: Simplify right side
   76,773.56x = 4,532,794,741.00
5. Step 5: Solve for x
   x = 4,532,794,741.00/76,773.56
6. Step 6: Final answer
   x = 59,041.09