Finding the Fourth Proportional to 76,866.91, 106,076.50 and 42,874.52

Step by Step Solution

1. Step 1: Write the proportion equation
   76,866.91 : 106,076.50 = 42,874.52 : x
2. Step 2: Convert to fraction form
   76,866.91/106,076.50 = 42,874.52/x
3. Step 3: Cross multiply
   76,866.91x = 106,076.50 × 42,874.52
4. Step 4: Simplify right side
   76,866.91x = 4,547,979,020.78
5. Step 5: Solve for x
   x = 4,547,979,020.78/76,866.91
6. Step 6: Final answer
   x = 59,166.93