Finding the Fourth Proportional to 40,410.29, 60,415.88 and 34,239.31

Step by Step Solution

1. Step 1: Write the proportion equation
   40,410.29 : 60,415.88 = 34,239.31 : x
2. Step 2: Convert to fraction form
   40,410.29/60,415.88 = 34,239.31/x
3. Step 3: Cross multiply
   40,410.29x = 60,415.88 × 34,239.31
4. Step 4: Simplify right side
   40,410.29x = 2,068,597,722.01
5. Step 5: Solve for x
   x = 2,068,597,722.01/40,410.29
6. Step 6: Final answer
   x = 51,189.87