Finding the Fourth Proportional to 78,774.92, 108,705.96 and 42,965.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,774.92 : 108,705.96 = 42,965.12 : x
2. Step 2: Convert to fraction form
   78,774.92/108,705.96 = 42,965.12/x
3. Step 3: Cross multiply
   78,774.92x = 108,705.96 × 42,965.12
4. Step 4: Simplify right side
   78,774.92x = 4,670,564,616.12
5. Step 5: Solve for x
   x = 4,670,564,616.12/78,774.92
6. Step 6: Final answer
   x = 59,290.00