Finding the Fourth Proportional to 71,068.78, 98,076.18 and 39,235.78

Step by Step Solution

1. Step 1: Write the proportion equation
   71,068.78 : 98,076.18 = 39,235.78 : x
2. Step 2: Convert to fraction form
   71,068.78/98,076.18 = 39,235.78/x
3. Step 3: Cross multiply
   71,068.78x = 98,076.18 × 39,235.78
4. Step 4: Simplify right side
   71,068.78x = 3,848,095,421.72
5. Step 5: Solve for x
   x = 3,848,095,421.72/71,068.78
6. Step 6: Final answer
   x = 54,146.07