Finding the Fourth Proportional to 78,770.37, 108,705.75 and 42,962.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,770.37 : 108,705.75 = 42,962.34 : x
2. Step 2: Convert to fraction form
   78,770.37/108,705.75 = 42,962.34/x
3. Step 3: Cross multiply
   78,770.37x = 108,705.75 × 42,962.34
4. Step 4: Simplify right side
   78,770.37x = 4,670,253,391.46
5. Step 5: Solve for x
   x = 4,670,253,391.46/78,770.37
6. Step 6: Final answer
   x = 59,289.47