Finding the Fourth Proportional to 77,559.24, 116,339.46 and 42,479.76

Step by Step Solution

1. Step 1: Write the proportion equation
   77,559.24 : 116,339.46 = 42,479.76 : x
2. Step 2: Convert to fraction form
   77,559.24/116,339.46 = 42,479.76/x
3. Step 3: Cross multiply
   77,559.24x = 116,339.46 × 42,479.76
4. Step 4: Simplify right side
   77,559.24x = 4,942,072,339.33
5. Step 5: Solve for x
   x = 4,942,072,339.33/77,559.24
6. Step 6: Final answer
   x = 63,719.97