Finding the Fourth Proportional to 78,068.81, 107,734.98 and 42,258.71

Step by Step Solution

1. Step 1: Write the proportion equation
   78,068.81 : 107,734.98 = 42,258.71 : x
2. Step 2: Convert to fraction form
   78,068.81/107,734.98 = 42,258.71/x
3. Step 3: Cross multiply
   78,068.81x = 107,734.98 × 42,258.71
4. Step 4: Simplify right side
   78,068.81x = 4,552,740,738.00
5. Step 5: Solve for x
   x = 4,552,740,738.00/78,068.81
6. Step 6: Final answer
   x = 58,317.03