Finding the Fourth Proportional to 78,068.24, 107,734.43 and 42,258.23

Step by Step Solution

1. Step 1: Write the proportion equation
   78,068.24 : 107,734.43 = 42,258.23 : x
2. Step 2: Convert to fraction form
   78,068.24/107,734.43 = 42,258.23/x
3. Step 3: Cross multiply
   78,068.24x = 107,734.43 × 42,258.23
4. Step 4: Simplify right side
   78,068.24x = 4,552,666,110.57
5. Step 5: Solve for x
   x = 4,552,666,110.57/78,068.24
6. Step 6: Final answer
   x = 58,316.50