Finding the Fourth Proportional to 72,656.79, 100,275.33 and 40,825

Step by Step Solution

1. Step 1: Write the proportion equation
   72,656.79 : 100,275.33 = 40,825 : x
2. Step 2: Convert to fraction form
   72,656.79/100,275.33 = 40,825/x
3. Step 3: Cross multiply
   72,656.79x = 100,275.33 × 40,825
4. Step 4: Simplify right side
   72,656.79x = 4,093,740,347.25
5. Step 5: Solve for x
   x = 4,093,740,347.25/72,656.79
6. Step 6: Final answer
   x = 56,343.53