Finding the Fourth Proportional to 91,906.02, 137,860.56 and 28,727.82

Step by Step Solution

1. Step 1: Write the proportion equation
   91,906.02 : 137,860.56 = 28,727.82 : x
2. Step 2: Convert to fraction form
   91,906.02/137,860.56 = 28,727.82/x
3. Step 3: Cross multiply
   91,906.02x = 137,860.56 × 28,727.82
4. Step 4: Simplify right side
   91,906.02x = 3,960,433,352.78
5. Step 5: Solve for x
   x = 3,960,433,352.78/91,906.02
6. Step 6: Final answer
   x = 43,092.21