Finding the Fourth Proportional to 76,653.92, 105,776.16 and 42,659.84

Step by Step Solution

1. Step 1: Write the proportion equation
   76,653.92 : 105,776.16 = 42,659.84 : x
2. Step 2: Convert to fraction form
   76,653.92/105,776.16 = 42,659.84/x
3. Step 3: Cross multiply
   76,653.92x = 105,776.16 × 42,659.84
4. Step 4: Simplify right side
   76,653.92x = 4,512,394,061.41
5. Step 5: Solve for x
   x = 4,512,394,061.41/76,653.92
6. Step 6: Final answer
   x = 58,867.10