Finding the Fourth Proportional to 78,330.72, 108,093.28 and 42,519.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,330.72 : 108,093.28 = 42,519.52 : x
2. Step 2: Convert to fraction form
   78,330.72/108,093.28 = 42,519.52/x
3. Step 3: Cross multiply
   78,330.72x = 108,093.28 × 42,519.52
4. Step 4: Simplify right side
   78,330.72x = 4,596,074,380.83
5. Step 5: Solve for x
   x = 4,596,074,380.83/78,330.72
6. Step 6: Final answer
   x = 58,675.25