Finding the Fourth Proportional to 72,360.63, 108,707.31 and 51,062.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,360.63 : 108,707.31 = 51,062.40 : x
2. Step 2: Convert to fraction form
   72,360.63/108,707.31 = 51,062.40/x
3. Step 3: Cross multiply
   72,360.63x = 108,707.31 × 51,062.40
4. Step 4: Simplify right side
   72,360.63x = 5,550,856,146.14
5. Step 5: Solve for x
   x = 5,550,856,146.14/72,360.63
6. Step 6: Final answer
   x = 76,711.00