Finding the Fourth Proportional to 76,766.88, 105,938.04 and 42,776.82

Step by Step Solution

1. Step 1: Write the proportion equation
   76,766.88 : 105,938.04 = 42,776.82 : x
2. Step 2: Convert to fraction form
   76,766.88/105,938.04 = 42,776.82/x
3. Step 3: Cross multiply
   76,766.88x = 105,938.04 × 42,776.82
4. Step 4: Simplify right side
   76,766.88x = 4,531,692,468.23
5. Step 5: Solve for x
   x = 4,531,692,468.23/76,766.88
6. Step 6: Final answer
   x = 59,031.87