Finding the Fourth Proportional to 76,311.63, 105,315.36 and 42,323.22

Step by Step Solution

1. Step 1: Write the proportion equation
   76,311.63 : 105,315.36 = 42,323.22 : x
2. Step 2: Convert to fraction form
   76,311.63/105,315.36 = 42,323.22/x
3. Step 3: Cross multiply
   76,311.63x = 105,315.36 × 42,323.22
4. Step 4: Simplify right side
   76,311.63x = 4,457,285,150.66
5. Step 5: Solve for x
   x = 4,457,285,150.66/76,311.63
6. Step 6: Final answer
   x = 58,408.99