Finding the Fourth Proportional to 92,740.50, 138,996.72 and 42,751.26

Step by Step Solution

1. Step 1: Write the proportion equation
   92,740.50 : 138,996.72 = 42,751.26 : x
2. Step 2: Convert to fraction form
   92,740.50/138,996.72 = 42,751.26/x
3. Step 3: Cross multiply
   92,740.50x = 138,996.72 × 42,751.26
4. Step 4: Simplify right side
   92,740.50x = 5,942,284,915.87
5. Step 5: Solve for x
   x = 5,942,284,915.87/92,740.50
6. Step 6: Final answer
   x = 64,074.32