Finding the Fourth Proportional to 77,622.50, 107,119.05 and 42,294.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,622.50 : 107,119.05 = 42,294.50 : x
2. Step 2: Convert to fraction form
   77,622.50/107,119.05 = 42,294.50/x
3. Step 3: Cross multiply
   77,622.50x = 107,119.05 × 42,294.50
4. Step 4: Simplify right side
   77,622.50x = 4,530,546,660.23
5. Step 5: Solve for x
   x = 4,530,546,660.23/77,622.50
6. Step 6: Final answer
   x = 58,366.41