Finding the Fourth Proportional to 79,211.79, 109,311.81 and 42,913.94

Step by Step Solution

1. Step 1: Write the proportion equation
   79,211.79 : 109,311.81 = 42,913.94 : x
2. Step 2: Convert to fraction form
   79,211.79/109,311.81 = 42,913.94/x
3. Step 3: Cross multiply
   79,211.79x = 109,311.81 × 42,913.94
4. Step 4: Simplify right side
   79,211.79x = 4,690,999,909.07
5. Step 5: Solve for x
   x = 4,690,999,909.07/79,211.79
6. Step 6: Final answer
   x = 59,220.98