Finding the Fourth Proportional to 70,362.72, 105,562.08 and 51,863.04

Step by Step Solution

1. Step 1: Write the proportion equation
   70,362.72 : 105,562.08 = 51,863.04 : x
2. Step 2: Convert to fraction form
   70,362.72/105,562.08 = 51,863.04/x
3. Step 3: Cross multiply
   70,362.72x = 105,562.08 × 51,863.04
4. Step 4: Simplify right side
   70,362.72x = 5,474,770,377.52
5. Step 5: Solve for x
   x = 5,474,770,377.52/70,362.72
6. Step 6: Final answer
   x = 77,807.83