Finding the Fourth Proportional to 78,529.45, 108,370.56 and 42,719.37

Step by Step Solution

1. Step 1: Write the proportion equation
   78,529.45 : 108,370.56 = 42,719.37 : x
2. Step 2: Convert to fraction form
   78,529.45/108,370.56 = 42,719.37/x
3. Step 3: Cross multiply
   78,529.45x = 108,370.56 × 42,719.37
4. Step 4: Simplify right side
   78,529.45x = 4,629,522,477.64
5. Step 5: Solve for x
   x = 4,629,522,477.64/78,529.45
6. Step 6: Final answer
   x = 58,952.69