Finding the Fourth Proportional to 76,982.30, 106,233.53 and 42,989.84

Step by Step Solution

1. Step 1: Write the proportion equation
   76,982.30 : 106,233.53 = 42,989.84 : x
2. Step 2: Convert to fraction form
   76,982.30/106,233.53 = 42,989.84/x
3. Step 3: Cross multiply
   76,982.30x = 106,233.53 × 42,989.84
4. Step 4: Simplify right side
   76,982.30x = 4,566,962,109.59
5. Step 5: Solve for x
   x = 4,566,962,109.59/76,982.30
6. Step 6: Final answer
   x = 59,324.83