Finding the Fourth Proportional to 72,504.17, 108,754.59 and 42,707.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,504.17 : 108,754.59 = 42,707.42 : x
2. Step 2: Convert to fraction form
   72,504.17/108,754.59 = 42,707.42/x
3. Step 3: Cross multiply
   72,504.17x = 108,754.59 × 42,707.42
4. Step 4: Simplify right side
   72,504.17x = 4,644,627,408.28
5. Step 5: Solve for x
   x = 4,644,627,408.28/72,504.17
6. Step 6: Final answer
   x = 64,060.15