Finding the Fourth Proportional to 42,868.08, 64,186.92 and 34,938.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,868.08 : 64,186.92 = 34,938.09 : x
2. Step 2: Convert to fraction form
   42,868.08/64,186.92 = 34,938.09/x
3. Step 3: Cross multiply
   42,868.08x = 64,186.92 × 34,938.09
4. Step 4: Simplify right side
   42,868.08x = 2,242,568,387.78
5. Step 5: Solve for x
   x = 2,242,568,387.78/42,868.08
6. Step 6: Final answer
   x = 52,313.25