Finding the Fourth Proportional to 76,908.10, 106,133 and 42,914.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,908.10 : 106,133 = 42,914.50 : x
2. Step 2: Convert to fraction form
   76,908.10/106,133 = 42,914.50/x
3. Step 3: Cross multiply
   76,908.10x = 106,133 × 42,914.50
4. Step 4: Simplify right side
   76,908.10x = 4,554,644,628.50
5. Step 5: Solve for x
   x = 4,554,644,628.50/76,908.10
6. Step 6: Final answer
   x = 59,221.91