Finding the Fourth Proportional to 76,883.37, 106,099.10 and 42,891.86

Step by Step Solution

1. Step 1: Write the proportion equation
   76,883.37 : 106,099.10 = 42,891.86 : x
2. Step 2: Convert to fraction form
   76,883.37/106,099.10 = 42,891.86/x
3. Step 3: Cross multiply
   76,883.37x = 106,099.10 × 42,891.86
4. Step 4: Simplify right side
   76,883.37x = 4,550,787,743.33
5. Step 5: Solve for x
   x = 4,550,787,743.33/76,883.37
6. Step 6: Final answer
   x = 59,190.79