Finding the Fourth Proportional to 78,162.71, 107,866.52 and 47,964.71

Step by Step Solution

1. Step 1: Write the proportion equation
   78,162.71 : 107,866.52 = 47,964.71 : x
2. Step 2: Convert to fraction form
   78,162.71/107,866.52 = 47,964.71/x
3. Step 3: Cross multiply
   78,162.71x = 107,866.52 × 47,964.71
4. Step 4: Simplify right side
   78,162.71x = 5,173,785,571.35
5. Step 5: Solve for x
   x = 5,173,785,571.35/78,162.71
6. Step 6: Final answer
   x = 66,192.51