Finding the Fourth Proportional to 78,069.32, 107,735.62 and 42,259.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,069.32 : 107,735.62 = 42,259.62 : x
2. Step 2: Convert to fraction form
   78,069.32/107,735.62 = 42,259.62/x
3. Step 3: Cross multiply
   78,069.32x = 107,735.62 × 42,259.62
4. Step 4: Simplify right side
   78,069.32x = 4,552,866,361.66
5. Step 5: Solve for x
   x = 4,552,866,361.66/78,069.32
6. Step 6: Final answer
   x = 58,318.25