Finding the Fourth Proportional to 76,159.62, 105,096.83 and 42,165.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,159.62 : 105,096.83 = 42,165.72 : x
2. Step 2: Convert to fraction form
   76,159.62/105,096.83 = 42,165.72/x
3. Step 3: Cross multiply
   76,159.62x = 105,096.83 × 42,165.72
4. Step 4: Simplify right side
   76,159.62x = 4,431,483,295.84
5. Step 5: Solve for x
   x = 4,431,483,295.84/76,159.62
6. Step 6: Final answer
   x = 58,186.78