Finding the Fourth Proportional to 72,528.72, 108,795.60 and 51,562.68

Step by Step Solution

1. Step 1: Write the proportion equation
   72,528.72 : 108,795.60 = 51,562.68 : x
2. Step 2: Convert to fraction form
   72,528.72/108,795.60 = 51,562.68/x
3. Step 3: Cross multiply
   72,528.72x = 108,795.60 × 51,562.68
4. Step 4: Simplify right side
   72,528.72x = 5,609,792,708.21
5. Step 5: Solve for x
   x = 5,609,792,708.21/72,528.72
6. Step 6: Final answer
   x = 77,345.81