Finding the Fourth Proportional to 76,883.77, 106,096.39 and 42,891.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,883.77 : 106,096.39 = 42,891.72 : x
2. Step 2: Convert to fraction form
   76,883.77/106,096.39 = 42,891.72/x
3. Step 3: Cross multiply
   76,883.77x = 106,096.39 × 42,891.72
4. Step 4: Simplify right side
   76,883.77x = 4,550,656,652.89
5. Step 5: Solve for x
   x = 4,550,656,652.89/76,883.77
6. Step 6: Final answer
   x = 59,188.78