Finding the Fourth Proportional to 72,601.16, 108,859.82 and 28,175.99

Step by Step Solution

1. Step 1: Write the proportion equation
   72,601.16 : 108,859.82 = 28,175.99 : x
2. Step 2: Convert to fraction form
   72,601.16/108,859.82 = 28,175.99/x
3. Step 3: Cross multiply
   72,601.16x = 108,859.82 × 28,175.99
4. Step 4: Simplify right side
   72,601.16x = 3,067,232,655.42
5. Step 5: Solve for x
   x = 3,067,232,655.42/72,601.16
6. Step 6: Final answer
   x = 42,247.71