Finding the Fourth Proportional to 76,103.41, 105,019.99 and 42,111.31

Step by Step Solution

1. Step 1: Write the proportion equation
   76,103.41 : 105,019.99 = 42,111.31 : x
2. Step 2: Convert to fraction form
   76,103.41/105,019.99 = 42,111.31/x
3. Step 3: Cross multiply
   76,103.41x = 105,019.99 × 42,111.31
4. Step 4: Simplify right side
   76,103.41x = 4,422,529,355.09
5. Step 5: Solve for x
   x = 4,422,529,355.09/76,103.41
6. Step 6: Final answer
   x = 58,112.11