Finding the Fourth Proportional to 78,479.36, 108,318.72 and 51,624.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,479.36 : 108,318.72 = 51,624.52 : x
2. Step 2: Convert to fraction form
   78,479.36/108,318.72 = 51,624.52/x
3. Step 3: Cross multiply
   78,479.36x = 108,318.72 × 51,624.52
4. Step 4: Simplify right side
   78,479.36x = 5,591,901,927.01
5. Step 5: Solve for x
   x = 5,591,901,927.01/78,479.36
6. Step 6: Final answer
   x = 71,253.15