Finding the Fourth Proportional to 76,770.02, 105,941.03 and 42,778.37

Step by Step Solution

1. Step 1: Write the proportion equation
   76,770.02 : 105,941.03 = 42,778.37 : x
2. Step 2: Convert to fraction form
   76,770.02/105,941.03 = 42,778.37/x
3. Step 3: Cross multiply
   76,770.02x = 105,941.03 × 42,778.37
4. Step 4: Simplify right side
   76,770.02x = 4,531,983,835.92
5. Step 5: Solve for x
   x = 4,531,983,835.92/76,770.02
6. Step 6: Final answer
   x = 59,033.25