Finding the Fourth Proportional to 42,754.10, 64,135.40 and 34,930.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42,754.10 : 64,135.40 = 34,930.71 : x
2. Step 2: Convert to fraction form
   42,754.10/64,135.40 = 34,930.71/x
3. Step 3: Cross multiply
   42,754.10x = 64,135.40 × 34,930.71
4. Step 4: Simplify right side
   42,754.10x = 2,240,294,883.48
5. Step 5: Solve for x
   x = 2,240,294,883.48/42,754.10
6. Step 6: Final answer
   x = 52,399.54