Finding the Fourth Proportional to 76,967.28, 106,213.82 and 42,976.34

Step by Step Solution

1. Step 1: Write the proportion equation
   76,967.28 : 106,213.82 = 42,976.34 : x
2. Step 2: Convert to fraction form
   76,967.28/106,213.82 = 42,976.34/x
3. Step 3: Cross multiply
   76,967.28x = 106,213.82 × 42,976.34
4. Step 4: Simplify right side
   76,967.28x = 4,564,681,241.02
5. Step 5: Solve for x
   x = 4,564,681,241.02/76,967.28
6. Step 6: Final answer
   x = 59,306.78