Finding the Fourth Proportional to 76,685.04, 105,826.20 and 42,233.64

Step by Step Solution

1. Step 1: Write the proportion equation
   76,685.04 : 105,826.20 = 42,233.64 : x
2. Step 2: Convert to fraction form
   76,685.04/105,826.20 = 42,233.64/x
3. Step 3: Cross multiply
   76,685.04x = 105,826.20 × 42,233.64
4. Step 4: Simplify right side
   76,685.04x = 4,469,425,633.37
5. Step 5: Solve for x
   x = 4,469,425,633.37/76,685.04
6. Step 6: Final answer
   x = 58,282.89