Finding the Fourth Proportional to 76,814.08, 106,005.37 and 42,828.10

Step by Step Solution

1. Step 1: Write the proportion equation
   76,814.08 : 106,005.37 = 42,828.10 : x
2. Step 2: Convert to fraction form
   76,814.08/106,005.37 = 42,828.10/x
3. Step 3: Cross multiply
   76,814.08x = 106,005.37 × 42,828.10
4. Step 4: Simplify right side
   76,814.08x = 4,540,008,586.90
5. Step 5: Solve for x
   x = 4,540,008,586.90/76,814.08
6. Step 6: Final answer
   x = 59,103.86