Finding the Fourth Proportional to 76,107.38, 105,033.46 and 42,117.30

Step by Step Solution

1. Step 1: Write the proportion equation
   76,107.38 : 105,033.46 = 42,117.30 : x
2. Step 2: Convert to fraction form
   76,107.38/105,033.46 = 42,117.30/x
3. Step 3: Cross multiply
   76,107.38x = 105,033.46 × 42,117.30
4. Step 4: Simplify right side
   76,107.38x = 4,423,725,718.53
5. Step 5: Solve for x
   x = 4,423,725,718.53/76,107.38
6. Step 6: Final answer
   x = 58,124.79