Finding the Fourth Proportional to 72,375.69, 108,686.86 and 47,118.23

Step by Step Solution

1. Step 1: Write the proportion equation
   72,375.69 : 108,686.86 = 47,118.23 : x
2. Step 2: Convert to fraction form
   72,375.69/108,686.86 = 47,118.23/x
3. Step 3: Cross multiply
   72,375.69x = 108,686.86 × 47,118.23
4. Step 4: Simplify right side
   72,375.69x = 5,121,131,806.23
5. Step 5: Solve for x
   x = 5,121,131,806.23/72,375.69
6. Step 6: Final answer
   x = 70,757.62