Finding the Fourth Proportional to 76,208.05, 105,165.97 and 42,216.43

Step by Step Solution

1. Step 1: Write the proportion equation
   76,208.05 : 105,165.97 = 42,216.43 : x
2. Step 2: Convert to fraction form
   76,208.05/105,165.97 = 42,216.43/x
3. Step 3: Cross multiply
   76,208.05x = 105,165.97 × 42,216.43
4. Step 4: Simplify right side
   76,208.05x = 4,439,731,810.89
5. Step 5: Solve for x
   x = 4,439,731,810.89/76,208.05
6. Step 6: Final answer
   x = 58,258.04