Finding the Fourth Proportional to 76,707.12, 105,852.96 and 42,716.82

Step by Step Solution

1. Step 1: Write the proportion equation
   76,707.12 : 105,852.96 = 42,716.82 : x
2. Step 2: Convert to fraction form
   76,707.12/105,852.96 = 42,716.82/x
3. Step 3: Cross multiply
   76,707.12x = 105,852.96 × 42,716.82
4. Step 4: Simplify right side
   76,707.12x = 4,521,701,838.79
5. Step 5: Solve for x
   x = 4,521,701,838.79/76,707.12
6. Step 6: Final answer
   x = 58,947.62